From 729f803d699b4d867bda7c2b6ca4b7af306dd149 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Thu, 3 Jul 2025 14:55:02 +0200
Subject: [PATCH 01/17] rescript_exe -> rescript_legacy_exe

---
 cli/common/bins.js                          |  2 +-
 cli/common/bsb.js                           |  4 ++--
 cli/{rescript.js => rescript-legacy.js}     | 14 +++++++-------
 cli/{rescript => rescript-legacy}/dump.js   | 14 +++++++++-----
 cli/{rescript => rescript-legacy}/format.js |  6 +++---
 lib_dev/process.js                          |  6 +++---
 packages/@rescript/darwin-arm64/bin.d.ts    | 14 +++++++-------
 packages/@rescript/darwin-arm64/bin.js      |  2 +-
 packages/@rescript/darwin-x64/bin.d.ts      | 14 +++++++-------
 packages/@rescript/darwin-x64/bin.js        |  2 +-
 packages/@rescript/linux-arm64/bin.d.ts     | 14 +++++++-------
 packages/@rescript/linux-arm64/bin.js       |  2 +-
 packages/@rescript/linux-x64/bin.d.ts       | 14 +++++++-------
 packages/@rescript/linux-x64/bin.js         |  2 +-
 packages/@rescript/win32-x64/bin.d.ts       | 14 +++++++-------
 packages/@rescript/win32-x64/bin.js         |  2 +-
 16 files changed, 65 insertions(+), 61 deletions(-)
 rename cli/{rescript.js => rescript-legacy.js} (90%)
 rename cli/{rescript => rescript-legacy}/dump.js (81%)
 rename cli/{rescript => rescript-legacy}/format.js (98%)

diff --git a/cli/common/bins.js b/cli/common/bins.js
index 91a699771e..368bd3a537 100644
--- a/cli/common/bins.js
+++ b/cli/common/bins.js
@@ -22,7 +22,7 @@ export const {
     ninja_exe,
     rescript_editor_analysis_exe,
     rescript_tools_exe,
-    rescript_exe,
+    rescript_legacy_exe,
     rewatch_exe,
   },
 } = mod;
diff --git a/cli/common/bsb.js b/cli/common/bsb.js
index 8f229f1aa7..b38d462887 100644
--- a/cli/common/bsb.js
+++ b/cli/common/bsb.js
@@ -7,7 +7,7 @@ import * as os from "node:os";
 import * as path from "node:path";
 import { WebSocket } from "#lib/minisocket";
 
-import { rescript_exe } from "./bins.js";
+import { rescript_legacy_exe } from "./bins.js";
 
 const cwd = process.cwd();
 const lockFileName = path.join(cwd, ".bsb.lock");
@@ -50,7 +50,7 @@ function acquireBuild(args, options) {
     return null;
   }
   try {
-    ownerProcess = child_process.spawn(rescript_exe, args, {
+    ownerProcess = child_process.spawn(rescript_legacy_exe, args, {
       stdio: "inherit",
       ...options,
     });
diff --git a/cli/rescript.js b/cli/rescript-legacy.js
similarity index 90%
rename from cli/rescript.js
rename to cli/rescript-legacy.js
index 98d8900ab2..c464f468a6 100755
--- a/cli/rescript.js
+++ b/cli/rescript-legacy.js
@@ -6,10 +6,10 @@
 // It matters since we need read .sourcedirs(location)
 // and its content are file/directories with regard to project root
 
-import * as tty from "node:tty";
 import * as fs from "node:fs";
+import * as tty from "node:tty";
 
-import { bsc_exe, rescript_exe } from "./common/bins.js";
+import { bsc_exe, rescript_legacy_exe } from "./common/bins.js";
 import * as bsb from "./common/bsb.js";
 
 const cwd = process.cwd();
@@ -94,7 +94,7 @@ if (
   console.log(helpMessage);
 } else if (argPatterns.version.includes(args[0])) {
   const packageSpec = JSON.parse(
-    fs.readFileSync(new URL("../package.json", import.meta.url), "utf-8")
+    fs.readFileSync(new URL("../package.json", import.meta.url), "utf-8"),
   );
 
   console.log(packageSpec.version);
@@ -116,13 +116,13 @@ if (
       break;
     }
     case "format": {
-      const mod = await import("./rescript/format.js");
-      await mod.main(subcmdArgs, rescript_exe, bsc_exe);
+      const mod = await import("./rescript-legacy/format.js");
+      await mod.main(subcmdArgs, rescript_legacy_exe, bsc_exe);
       break;
     }
     case "dump": {
-      const mod = await import("./rescript/dump.js");
-      mod.main(subcmdArgs, rescript_exe, bsc_exe);
+      const mod = await import("./rescript-legacy/dump.js");
+      mod.main(subcmdArgs, rescript_legacy_exe, bsc_exe);
       break;
     }
     default: {
diff --git a/cli/rescript/dump.js b/cli/rescript-legacy/dump.js
similarity index 81%
rename from cli/rescript/dump.js
rename to cli/rescript-legacy/dump.js
index bd1201e354..3acf52a251 100644
--- a/cli/rescript/dump.js
+++ b/cli/rescript-legacy/dump.js
@@ -16,10 +16,10 @@ const specs = [];
 
 /**
  * @param {string[]} argv
- * @param {string} rescript_exe
+ * @param {string} rescript_legacy_exe
  * @param {string} bsc_exe
  */
-export function main(argv, rescript_exe, bsc_exe) {
+export function main(argv, rescript_legacy_exe, bsc_exe) {
   let target;
   arg.parse_exn(dump_usage, argv, specs, xs => {
     if (xs.length !== 1) {
@@ -34,9 +34,13 @@ export function main(argv, rescript_exe, bsc_exe) {
     process.exit(2);
   }
 
-  let output = child_process.spawnSync(rescript_exe, ["build", "--", target], {
-    encoding: "utf-8",
-  });
+  let output = child_process.spawnSync(
+    rescript_legacy_exe,
+    ["build", "--", target],
+    {
+      encoding: "utf-8",
+    },
+  );
   if (output.status !== 0) {
     console.log(output.stdout);
     console.error(output.stderr);
diff --git a/cli/rescript/format.js b/cli/rescript-legacy/format.js
similarity index 98%
rename from cli/rescript/format.js
rename to cli/rescript-legacy/format.js
index 072d340d76..9fc1759b8d 100644
--- a/cli/rescript/format.js
+++ b/cli/rescript-legacy/format.js
@@ -143,10 +143,10 @@ async function formatFiles(files, bsc_exe, isSupportedFile, checkFormatting) {
 
 /**
  * @param {string[]} argv
- * @param {string} rescript_exe
+ * @param {string} rescript_legacy_exe
  * @param {string} bsc_exe
  */
-export async function main(argv, rescript_exe, bsc_exe) {
+export async function main(argv, rescript_legacy_exe, bsc_exe) {
   const isSupportedFile = hasExtension(formattedFileExtensions);
   const isSupportedStd = hasExtension(formattedStdExtensions);
 
@@ -179,7 +179,7 @@ export async function main(argv, rescript_exe, bsc_exe) {
       // -all
       // TODO: check the rest arguments
       const output = child_process.spawnSync(
-        rescript_exe,
+        rescript_legacy_exe,
         ["info", "-list-files"],
         {
           encoding: "utf-8",
diff --git a/lib_dev/process.js b/lib_dev/process.js
index c2d506b08b..bcb73ba1b2 100644
--- a/lib_dev/process.js
+++ b/lib_dev/process.js
@@ -1,7 +1,7 @@
 import * as child_process from "node:child_process";
 import * as fs from "node:fs/promises";
 import * as path from "node:path";
-import { bsc_exe, rescript_exe } from "#cli/bins";
+import { bsc_exe, rescript_legacy_exe } from "#cli/bins";
 
 /**
  * @typedef {{
@@ -181,7 +181,7 @@ export function setup(cwd = process.cwd()) {
      * @return {Promise<ExecResult>}
      */
     execBuild(args = [], options = {}) {
-      return exec(rescript_exe, ["build", ...args], options);
+      return exec(rescript_legacy_exe, ["build", ...args], options);
     },
 
     /**
@@ -192,7 +192,7 @@ export function setup(cwd = process.cwd()) {
      * @return {Promise<ExecResult>}
      */
     execClean(args = [], options = {}) {
-      return exec(rescript_exe, ["clean", ...args], options);
+      return exec(rescript_legacy_exe, ["clean", ...args], options);
     },
 
     /**
diff --git a/packages/@rescript/darwin-arm64/bin.d.ts b/packages/@rescript/darwin-arm64/bin.d.ts
index 1a78d275d7..8ee51bed78 100644
--- a/packages/@rescript/darwin-arm64/bin.d.ts
+++ b/packages/@rescript/darwin-arm64/bin.d.ts
@@ -3,11 +3,11 @@ export const binDir: string;
 export const binPaths: BinaryPaths;
 
 export type BinaryPaths = {
-  bsb_helper_exe: string,
-  bsc_exe: string,
-  ninja_exe: string,
-  rescript_exe: string,
-  rescript_tools_exe: string,
-  rescript_editor_analysis_exe: string,
-  rewatch_exe: string,
+  bsb_helper_exe: string;
+  bsc_exe: string;
+  ninja_exe: string;
+  rescript_legacy_exe: string;
+  rescript_tools_exe: string;
+  rescript_editor_analysis_exe: string;
+  rewatch_exe: string;
 };
diff --git a/packages/@rescript/darwin-arm64/bin.js b/packages/@rescript/darwin-arm64/bin.js
index 0bae072013..41dd99e328 100644
--- a/packages/@rescript/darwin-arm64/bin.js
+++ b/packages/@rescript/darwin-arm64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,
diff --git a/packages/@rescript/darwin-x64/bin.d.ts b/packages/@rescript/darwin-x64/bin.d.ts
index 1a78d275d7..8ee51bed78 100644
--- a/packages/@rescript/darwin-x64/bin.d.ts
+++ b/packages/@rescript/darwin-x64/bin.d.ts
@@ -3,11 +3,11 @@ export const binDir: string;
 export const binPaths: BinaryPaths;
 
 export type BinaryPaths = {
-  bsb_helper_exe: string,
-  bsc_exe: string,
-  ninja_exe: string,
-  rescript_exe: string,
-  rescript_tools_exe: string,
-  rescript_editor_analysis_exe: string,
-  rewatch_exe: string,
+  bsb_helper_exe: string;
+  bsc_exe: string;
+  ninja_exe: string;
+  rescript_legacy_exe: string;
+  rescript_tools_exe: string;
+  rescript_editor_analysis_exe: string;
+  rewatch_exe: string;
 };
diff --git a/packages/@rescript/darwin-x64/bin.js b/packages/@rescript/darwin-x64/bin.js
index 0bae072013..41dd99e328 100644
--- a/packages/@rescript/darwin-x64/bin.js
+++ b/packages/@rescript/darwin-x64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,
diff --git a/packages/@rescript/linux-arm64/bin.d.ts b/packages/@rescript/linux-arm64/bin.d.ts
index 1a78d275d7..8ee51bed78 100644
--- a/packages/@rescript/linux-arm64/bin.d.ts
+++ b/packages/@rescript/linux-arm64/bin.d.ts
@@ -3,11 +3,11 @@ export const binDir: string;
 export const binPaths: BinaryPaths;
 
 export type BinaryPaths = {
-  bsb_helper_exe: string,
-  bsc_exe: string,
-  ninja_exe: string,
-  rescript_exe: string,
-  rescript_tools_exe: string,
-  rescript_editor_analysis_exe: string,
-  rewatch_exe: string,
+  bsb_helper_exe: string;
+  bsc_exe: string;
+  ninja_exe: string;
+  rescript_legacy_exe: string;
+  rescript_tools_exe: string;
+  rescript_editor_analysis_exe: string;
+  rewatch_exe: string;
 };
diff --git a/packages/@rescript/linux-arm64/bin.js b/packages/@rescript/linux-arm64/bin.js
index 0bae072013..41dd99e328 100644
--- a/packages/@rescript/linux-arm64/bin.js
+++ b/packages/@rescript/linux-arm64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,
diff --git a/packages/@rescript/linux-x64/bin.d.ts b/packages/@rescript/linux-x64/bin.d.ts
index 1a78d275d7..8ee51bed78 100644
--- a/packages/@rescript/linux-x64/bin.d.ts
+++ b/packages/@rescript/linux-x64/bin.d.ts
@@ -3,11 +3,11 @@ export const binDir: string;
 export const binPaths: BinaryPaths;
 
 export type BinaryPaths = {
-  bsb_helper_exe: string,
-  bsc_exe: string,
-  ninja_exe: string,
-  rescript_exe: string,
-  rescript_tools_exe: string,
-  rescript_editor_analysis_exe: string,
-  rewatch_exe: string,
+  bsb_helper_exe: string;
+  bsc_exe: string;
+  ninja_exe: string;
+  rescript_legacy_exe: string;
+  rescript_tools_exe: string;
+  rescript_editor_analysis_exe: string;
+  rewatch_exe: string;
 };
diff --git a/packages/@rescript/linux-x64/bin.js b/packages/@rescript/linux-x64/bin.js
index 0bae072013..41dd99e328 100644
--- a/packages/@rescript/linux-x64/bin.js
+++ b/packages/@rescript/linux-x64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,
diff --git a/packages/@rescript/win32-x64/bin.d.ts b/packages/@rescript/win32-x64/bin.d.ts
index 1a78d275d7..8ee51bed78 100644
--- a/packages/@rescript/win32-x64/bin.d.ts
+++ b/packages/@rescript/win32-x64/bin.d.ts
@@ -3,11 +3,11 @@ export const binDir: string;
 export const binPaths: BinaryPaths;
 
 export type BinaryPaths = {
-  bsb_helper_exe: string,
-  bsc_exe: string,
-  ninja_exe: string,
-  rescript_exe: string,
-  rescript_tools_exe: string,
-  rescript_editor_analysis_exe: string,
-  rewatch_exe: string,
+  bsb_helper_exe: string;
+  bsc_exe: string;
+  ninja_exe: string;
+  rescript_legacy_exe: string;
+  rescript_tools_exe: string;
+  rescript_editor_analysis_exe: string;
+  rewatch_exe: string;
 };
diff --git a/packages/@rescript/win32-x64/bin.js b/packages/@rescript/win32-x64/bin.js
index 0bae072013..41dd99e328 100644
--- a/packages/@rescript/win32-x64/bin.js
+++ b/packages/@rescript/win32-x64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,

From a6a8b6af416ad33c2fdde58bca2354045188d184 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Thu, 3 Jul 2025 15:00:14 +0200
Subject: [PATCH 02/17] rescript.exe -> rescript-legacy.exe

---
 analysis/examples/larger-project/src/res_scanner.res | 2 +-
 compiler/bsb_exe/dune                                | 2 +-
 compiler/syntax/src/res_scanner.ml                   | 2 +-
 packages/@rescript/darwin-arm64/bin.js               | 2 +-
 packages/@rescript/darwin-arm64/package.json         | 2 +-
 packages/@rescript/darwin-x64/bin.js                 | 2 +-
 packages/@rescript/darwin-x64/package.json           | 2 +-
 packages/@rescript/linux-arm64/bin.js                | 2 +-
 packages/@rescript/linux-arm64/package.json          | 2 +-
 packages/@rescript/linux-x64/bin.js                  | 2 +-
 packages/@rescript/linux-x64/package.json            | 2 +-
 packages/@rescript/win32-x64/bin.js                  | 2 +-
 packages/@rescript/win32-x64/package.json            | 2 +-
 rewatch/src/helpers.rs                               | 2 +-
 scripts/copyExes.js                                  | 2 +-
 15 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/analysis/examples/larger-project/src/res_scanner.res b/analysis/examples/larger-project/src/res_scanner.res
index 6b3b8ce34b..b625fc4d5a 100644
--- a/analysis/examples/larger-project/src/res_scanner.res
+++ b/analysis/examples/larger-project/src/res_scanner.res
@@ -62,7 +62,7 @@ let position = scanner => {
 }
 
 /* Small debugging util
-❯ echo 'let msg = "hello"' | ./lib/rescript.exe
+❯ echo 'let msg = "hello"' | ./lib/rescript-legacy.exe
 let msg = "hello"
 ^-^ let 0-3
 let msg = "hello"
diff --git a/compiler/bsb_exe/dune b/compiler/bsb_exe/dune
index 4478ba2cc4..0c22a4930c 100644
--- a/compiler/bsb_exe/dune
+++ b/compiler/bsb_exe/dune
@@ -5,7 +5,7 @@
 
 (executable
  (name rescript_main)
- (public_name rescript)
+ (public_name rescript-legacy)
  (package rescript)
  (enabled_if
   (<> %{profile} browser))
diff --git a/compiler/syntax/src/res_scanner.ml b/compiler/syntax/src/res_scanner.ml
index a49ea8a5ee..3c66812bc1 100644
--- a/compiler/syntax/src/res_scanner.ml
+++ b/compiler/syntax/src/res_scanner.ml
@@ -61,7 +61,7 @@ let position scanner =
     }
 
 (* Small debugging util
-   ❯ echo 'let msg = "hello"' | ./lib/rescript.exe
+   ❯ echo 'let msg = "hello"' | ./lib/rescript-legacy.exe
    let msg = "hello"
    ^-^ let 0-3
    let msg = "hello"
diff --git a/packages/@rescript/darwin-arm64/bin.js b/packages/@rescript/darwin-arm64/bin.js
index 41dd99e328..07be3b83e7 100644
--- a/packages/@rescript/darwin-arm64/bin.js
+++ b/packages/@rescript/darwin-arm64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript-legacy.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,
diff --git a/packages/@rescript/darwin-arm64/package.json b/packages/@rescript/darwin-arm64/package.json
index 5015e16f9d..927432e13a 100644
--- a/packages/@rescript/darwin-arm64/package.json
+++ b/packages/@rescript/darwin-arm64/package.json
@@ -32,7 +32,7 @@
       "./bin/bsb_helper.exe",
       "./bin/bsc.exe",
       "./bin/ninja.exe",
-      "./bin/rescript.exe",
+      "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
       "./bin/rewatch.exe"
diff --git a/packages/@rescript/darwin-x64/bin.js b/packages/@rescript/darwin-x64/bin.js
index 41dd99e328..07be3b83e7 100644
--- a/packages/@rescript/darwin-x64/bin.js
+++ b/packages/@rescript/darwin-x64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript-legacy.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,
diff --git a/packages/@rescript/darwin-x64/package.json b/packages/@rescript/darwin-x64/package.json
index 753167a9e5..2e2138b70e 100644
--- a/packages/@rescript/darwin-x64/package.json
+++ b/packages/@rescript/darwin-x64/package.json
@@ -32,7 +32,7 @@
       "./bin/bsb_helper.exe",
       "./bin/bsc.exe",
       "./bin/ninja.exe",
-      "./bin/rescript.exe",
+      "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
       "./bin/rewatch.exe"
diff --git a/packages/@rescript/linux-arm64/bin.js b/packages/@rescript/linux-arm64/bin.js
index 41dd99e328..07be3b83e7 100644
--- a/packages/@rescript/linux-arm64/bin.js
+++ b/packages/@rescript/linux-arm64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript-legacy.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,
diff --git a/packages/@rescript/linux-arm64/package.json b/packages/@rescript/linux-arm64/package.json
index 4d2391b32f..501cf53c4e 100644
--- a/packages/@rescript/linux-arm64/package.json
+++ b/packages/@rescript/linux-arm64/package.json
@@ -32,7 +32,7 @@
       "./bin/bsb_helper.exe",
       "./bin/bsc.exe",
       "./bin/ninja.exe",
-      "./bin/rescript.exe",
+      "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
       "./bin/rewatch.exe"
diff --git a/packages/@rescript/linux-x64/bin.js b/packages/@rescript/linux-x64/bin.js
index 41dd99e328..07be3b83e7 100644
--- a/packages/@rescript/linux-x64/bin.js
+++ b/packages/@rescript/linux-x64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript-legacy.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,
diff --git a/packages/@rescript/linux-x64/package.json b/packages/@rescript/linux-x64/package.json
index 58a531e342..0c1e073bd8 100644
--- a/packages/@rescript/linux-x64/package.json
+++ b/packages/@rescript/linux-x64/package.json
@@ -32,7 +32,7 @@
       "./bin/bsb_helper.exe",
       "./bin/bsc.exe",
       "./bin/ninja.exe",
-      "./bin/rescript.exe",
+      "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
       "./bin/rewatch.exe"
diff --git a/packages/@rescript/win32-x64/bin.js b/packages/@rescript/win32-x64/bin.js
index 41dd99e328..07be3b83e7 100644
--- a/packages/@rescript/win32-x64/bin.js
+++ b/packages/@rescript/win32-x64/bin.js
@@ -8,7 +8,7 @@ export const binPaths = {
   bsb_helper_exe: path.join(binDir, "bsb_helper.exe"),
   bsc_exe: path.join(binDir, "bsc.exe"),
   ninja_exe: path.join(binDir, "ninja.exe"),
-  rescript_legacy_exe: path.join(binDir, "rescript.exe"),
+  rescript_legacy_exe: path.join(binDir, "rescript-legacy.exe"),
   rescript_tools_exe: path.join(binDir, "rescript-tools.exe"),
   rescript_editor_analysis_exe: path.join(
     binDir,
diff --git a/packages/@rescript/win32-x64/package.json b/packages/@rescript/win32-x64/package.json
index 3a7e57a7a8..a299e55ba4 100644
--- a/packages/@rescript/win32-x64/package.json
+++ b/packages/@rescript/win32-x64/package.json
@@ -32,7 +32,7 @@
       "./bin/bsb_helper.exe",
       "./bin/bsc.exe",
       "./bin/ninja.exe",
-      "./bin/rescript.exe",
+      "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
       "./bin/rewatch.exe"
diff --git a/rewatch/src/helpers.rs b/rewatch/src/helpers.rs
index 9b6661c2e4..648c8905e4 100644
--- a/rewatch/src/helpers.rs
+++ b/rewatch/src/helpers.rs
@@ -240,7 +240,7 @@ pub fn get_rescript_legacy(root_path: &Path, workspace_root: Option<PathBuf>) ->
     ) {
         (Ok(path), _) => path,
         (_, Some(Ok(path))) => path,
-        _ => panic!("Could not find rescript.exe"),
+        _ => panic!("Could not find rescript-legacy.exe"),
     }
 }
 
diff --git a/scripts/copyExes.js b/scripts/copyExes.js
index 3e54761753..6379862b01 100755
--- a/scripts/copyExes.js
+++ b/scripts/copyExes.js
@@ -34,7 +34,7 @@ const shouldCopyNinja = args.values.all || args.values.ninja;
 const shouldCopyRewatch = args.values.all || args.values.rewatch;
 
 if (shouldCopyCompiler) {
-  copyExe(compilerBinDir, "rescript");
+  copyExe(compilerBinDir, "rescript-legacy");
   copyExe(compilerBinDir, "rescript-editor-analysis");
   copyExe(compilerBinDir, "rescript-tools");
   copyExe(compilerBinDir, "bsc");

From b934f86c199930085551b13e39be49d5d22154e0 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Thu, 3 Jul 2025 15:23:46 +0200
Subject: [PATCH 03/17] rewatch.exe -> rescript.exe

---
 Makefile            | 1 -
 scripts/copyExes.js | 7 ++++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 032b80f314..8083399fb6 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,6 @@ dce:
 
 rewatch:
 	cargo build --manifest-path rewatch/Cargo.toml --release
-	cp rewatch/target/release/rewatch rewatch
 	./scripts/copyExes.js --rewatch
 
 ninja/ninja:
diff --git a/scripts/copyExes.js b/scripts/copyExes.js
index 6379862b01..9020a3d5ab 100755
--- a/scripts/copyExes.js
+++ b/scripts/copyExes.js
@@ -46,17 +46,18 @@ if (shouldCopyNinja) {
 }
 
 if (shouldCopyRewatch) {
-  copyExe(rewatchDir, "rewatch");
+  copyExe(path.join(rewatchDir, "target", "release"), "rewatch", "rescript");
 }
 
 /**
  * @param {string} dir
  * @param {string} exe
+ * @param {string | undefined} renamed
  */
-function copyExe(dir, exe) {
+function copyExe(dir, exe, renamed) {
   const ext = process.platform === "win32" ? ".exe" : "";
   const src = path.join(dir, exe + ext);
-  const dest = path.join(binDir, `${exe}.exe`);
+  const dest = path.join(binDir, `${renamed ?? exe}.exe`);
 
   // For some reason, the copy operation fails in Windows CI if the file already exists.
   if (process.platform === "win32" && fs.existsSync(dest)) {

From a8ebb3ea6529930275f069ca42d075726cc441f9 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Thu, 3 Jul 2025 15:26:03 +0200
Subject: [PATCH 04/17] cli/rescript.js -> cli/rescript-legacy.js

---
 cli/{rewatch.js => rescript.js} | 0
 lib_dev/process.js              | 5 ++++-
 package.json                    | 2 +-
 packages/artifacts.txt          | 2 +-
 rewatch/src/helpers.rs          | 4 ++--
 scripts/buildRuntime.sh         | 2 +-
 scripts/format.sh               | 2 +-
 scripts/format_check.sh         | 2 +-
 yarn.lock                       | 2 +-
 9 files changed, 12 insertions(+), 9 deletions(-)
 rename cli/{rewatch.js => rescript.js} (100%)

diff --git a/cli/rewatch.js b/cli/rescript.js
similarity index 100%
rename from cli/rewatch.js
rename to cli/rescript.js
diff --git a/lib_dev/process.js b/lib_dev/process.js
index bcb73ba1b2..0dbddd4881 100644
--- a/lib_dev/process.js
+++ b/lib_dev/process.js
@@ -158,7 +158,10 @@ export function setup(cwd = process.cwd()) {
      * @return {Promise<ExecResult>}
      */
     rescript(command, args = [], options = {}) {
-      const cliPath = path.join(import.meta.dirname, "../cli/rescript.js");
+      const cliPath = path.join(
+        import.meta.dirname,
+        "../cli/rescript-legacy.js",
+      );
       return exec("node", [cliPath, command, ...args].filter(Boolean), options);
     },
 
diff --git a/package.json b/package.json
index aca5a88df1..d57b6bda2e 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
   "bin": {
     "bsc": "cli/bsc.js",
     "bstracing": "cli/bstracing.js",
-    "rescript": "cli/rescript.js",
+    "rescript-legacy": "cli/rescript-legacy.js",
     "rescript-tools": "cli/rescript-tools.js",
     "rewatch": "cli/rewatch.js"
   },
diff --git a/packages/artifacts.txt b/packages/artifacts.txt
index d963e87546..f110403ae2 100644
--- a/packages/artifacts.txt
+++ b/packages/artifacts.txt
@@ -10,7 +10,7 @@ cli/common/args.js
 cli/common/bins.js
 cli/common/bsb.js
 cli/rescript-tools.js
-cli/rescript.js
+cli/rescript-legacy.js
 cli/rescript/dump.js
 cli/rescript/format.js
 cli/rewatch.js
diff --git a/rewatch/src/helpers.rs b/rewatch/src/helpers.rs
index 648c8905e4..b808909af3 100644
--- a/rewatch/src/helpers.rs
+++ b/rewatch/src/helpers.rs
@@ -227,13 +227,13 @@ pub fn get_rescript_legacy(root_path: &Path, workspace_root: Option<PathBuf>) ->
     match (
         root_path
             .join(&bin_dir)
-            .join("rescript.js")
+            .join("rescript-legacy.js")
             .canonicalize()
             .map(StrippedVerbatimPath::to_stripped_verbatim_path),
         workspace_root.map(|workspace_root| {
             workspace_root
                 .join(&bin_dir)
-                .join("rescript.js")
+                .join("rescript-legacy.js")
                 .canonicalize()
                 .map(StrippedVerbatimPath::to_stripped_verbatim_path)
         }),
diff --git a/scripts/buildRuntime.sh b/scripts/buildRuntime.sh
index 42ace88baf..1d3c6a541f 100755
--- a/scripts/buildRuntime.sh
+++ b/scripts/buildRuntime.sh
@@ -2,7 +2,7 @@
 set -e
 shopt -s extglob
 
-(cd runtime && ../cli/rescript.js clean && ../cli/rescript.js build)
+(cd runtime && ../cli/rescript-legacy.js clean && ../cli/rescript-legacy.js build)
 
 rm -f lib/es6/*.js lib/js/*.js lib/ocaml/*
 mkdir -p lib/es6 lib/js lib/ocaml
diff --git a/scripts/format.sh b/scripts/format.sh
index a1bbd91607..d8d743a7e4 100755
--- a/scripts/format.sh
+++ b/scripts/format.sh
@@ -5,6 +5,6 @@ shopt -s extglob
 dune build @fmt --auto-promote
 
 files=$(find runtime tests -type f \( -name "*.res" -o -name "*.resi" \) ! -name "syntaxErrors*" ! -name "generated_mocha_test.res" ! -path "tests/syntax_tests*" ! -path "tests/analysis_tests/tests*" ! -path "*/node_modules/*")
-./cli/rescript.js format $files
+./cli/rescript-legacy.js format $files
 
 yarn format
diff --git a/scripts/format_check.sh b/scripts/format_check.sh
index b7daf67d4f..68ac076216 100755
--- a/scripts/format_check.sh
+++ b/scripts/format_check.sh
@@ -18,7 +18,7 @@ case "$(uname -s)" in
 
     echo "Checking ReScript code formatting..."
     files=$(find runtime tests -type f \( -name "*.res" -o -name "*.resi" \) ! -name "syntaxErrors*" ! -name "generated_mocha_test.res" ! -path "tests/syntax_tests*" ! -path "tests/analysis_tests/tests*" ! -path "*/node_modules/*")
-    if ./cli/rescript.js format -check $files; then
+    if ./cli/rescript-legacy.js format -check $files; then
       printf "${successGreen}✅ ReScript code formatting ok.${reset}\n"
     else
       printf "${warningYellow}⚠️ ReScript code formatting issues found. Run 'make format' to fix.${reset}\n"
diff --git a/yarn.lock b/yarn.lock
index 13a6d70b5f..3ab27e7990 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2534,7 +2534,7 @@ __metadata:
   bin:
     bsc: cli/bsc.js
     bstracing: cli/bstracing.js
-    rescript: cli/rescript.js
+    rescript-legacy: cli/rescript-legacy.js
     rescript-tools: cli/rescript-tools.js
     rewatch: cli/rewatch.js
   languageName: unknown

From 66314d976a9bfee4c52f9f942da3cb033536025c Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Thu, 3 Jul 2025 15:30:17 +0200
Subject: [PATCH 05/17] cli/rewatch.js -> cli/rescript.js

---
 cli/rescript.js                | 6 +++---
 package.json                   | 4 ++--
 packages/artifacts.txt         | 8 ++++----
 scripts/buildRuntimeRewatch.sh | 2 +-
 yarn.lock                      | 2 +-
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/cli/rescript.js b/cli/rescript.js
index d7e65e077e..b230c81247 100755
--- a/cli/rescript.js
+++ b/cli/rescript.js
@@ -3,11 +3,11 @@
 // @ts-check
 
 import * as child_process from "node:child_process";
-import { rewatch_exe, bsc_exe } from "./common/bins.js";
+import { bsc_exe, rewatch_exe } from "./common/bins.js";
 
 const args = process.argv.slice(2);
 
-const firstPositionalArgIndex = args.findIndex((arg) => !arg.startsWith("-"));
+const firstPositionalArgIndex = args.findIndex(arg => !arg.startsWith("-"));
 
 try {
   if (firstPositionalArgIndex !== -1) {
@@ -25,7 +25,7 @@ try {
         [...subcommandWithArgs, "--bsc-path", bsc_exe],
         {
           stdio: "inherit",
-        }
+        },
       );
     } else {
       child_process.execFileSync(rewatch_exe, [...args], {
diff --git a/package.json b/package.json
index d57b6bda2e..b82b02f895 100644
--- a/package.json
+++ b/package.json
@@ -40,9 +40,9 @@
   "bin": {
     "bsc": "cli/bsc.js",
     "bstracing": "cli/bstracing.js",
+    "rescript": "cli/rescript.js",
     "rescript-legacy": "cli/rescript-legacy.js",
-    "rescript-tools": "cli/rescript-tools.js",
-    "rewatch": "cli/rewatch.js"
+    "rescript-tools": "cli/rescript-tools.js"
   },
   "scripts": {
     "test": "node scripts/test.js -all",
diff --git a/packages/artifacts.txt b/packages/artifacts.txt
index f110403ae2..b302331583 100644
--- a/packages/artifacts.txt
+++ b/packages/artifacts.txt
@@ -9,11 +9,11 @@ cli/bstracing.js
 cli/common/args.js
 cli/common/bins.js
 cli/common/bsb.js
-cli/rescript-tools.js
 cli/rescript-legacy.js
-cli/rescript/dump.js
-cli/rescript/format.js
-cli/rewatch.js
+cli/rescript-legacy/dump.js
+cli/rescript-legacy/format.js
+cli/rescript-tools.js
+cli/rescript.js
 docs/docson/build-schema.json
 lib/es6/Belt.js
 lib/es6/Belt_Array.js
diff --git a/scripts/buildRuntimeRewatch.sh b/scripts/buildRuntimeRewatch.sh
index 2d2bd014af..e23f14f402 100755
--- a/scripts/buildRuntimeRewatch.sh
+++ b/scripts/buildRuntimeRewatch.sh
@@ -2,7 +2,7 @@
 set -e
 shopt -s extglob
 
-(cd runtime && ../cli/rewatch.js clean && ../cli/rewatch.js build)
+(cd runtime && ../cli/rescript.js clean && ../cli/rescript.js build)
 
 rm -f lib/es6/*.js lib/js/*.js lib/ocaml/*
 mkdir -p lib/es6 lib/js lib/ocaml
diff --git a/yarn.lock b/yarn.lock
index 3ab27e7990..7252b6809e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2534,9 +2534,9 @@ __metadata:
   bin:
     bsc: cli/bsc.js
     bstracing: cli/bstracing.js
+    rescript: cli/rescript.js
     rescript-legacy: cli/rescript-legacy.js
     rescript-tools: cli/rescript-tools.js
-    rewatch: cli/rewatch.js
   languageName: unknown
   linkType: soft
 

From dd93817d2bfb5068ca0df320f1f4109dbb212456 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Thu, 3 Jul 2025 15:39:21 +0200
Subject: [PATCH 06/17] rewatch_exe -> rescript_exe

---
 cli/common/bins.js                       | 2 +-
 cli/rescript.js                          | 8 ++++----
 packages/@rescript/darwin-arm64/bin.d.ts | 2 +-
 packages/@rescript/darwin-arm64/bin.js   | 2 +-
 packages/@rescript/darwin-x64/bin.d.ts   | 2 +-
 packages/@rescript/darwin-x64/bin.js     | 2 +-
 packages/@rescript/linux-arm64/bin.d.ts  | 2 +-
 packages/@rescript/linux-arm64/bin.js    | 2 +-
 packages/@rescript/linux-x64/bin.d.ts    | 2 +-
 packages/@rescript/linux-x64/bin.js      | 2 +-
 packages/@rescript/win32-x64/bin.d.ts    | 2 +-
 packages/@rescript/win32-x64/bin.js      | 2 +-
 12 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/cli/common/bins.js b/cli/common/bins.js
index 368bd3a537..1844607281 100644
--- a/cli/common/bins.js
+++ b/cli/common/bins.js
@@ -23,6 +23,6 @@ export const {
     rescript_editor_analysis_exe,
     rescript_tools_exe,
     rescript_legacy_exe,
-    rewatch_exe,
+    rescript_exe,
   },
 } = mod;
diff --git a/cli/rescript.js b/cli/rescript.js
index b230c81247..731b33143a 100755
--- a/cli/rescript.js
+++ b/cli/rescript.js
@@ -3,7 +3,7 @@
 // @ts-check
 
 import * as child_process from "node:child_process";
-import { bsc_exe, rewatch_exe } from "./common/bins.js";
+import { bsc_exe, rescript_exe } from "./common/bins.js";
 
 const args = process.argv.slice(2);
 
@@ -21,20 +21,20 @@ try {
       subcommand === "compiler-args"
     ) {
       child_process.execFileSync(
-        rewatch_exe,
+        rescript_exe,
         [...subcommandWithArgs, "--bsc-path", bsc_exe],
         {
           stdio: "inherit",
         },
       );
     } else {
-      child_process.execFileSync(rewatch_exe, [...args], {
+      child_process.execFileSync(rescript_exe, [...args], {
         stdio: "inherit",
       });
     }
   } else {
     // no subcommand means build subcommand
-    child_process.execFileSync(rewatch_exe, [...args, "--bsc-path", bsc_exe], {
+    child_process.execFileSync(rescript_exe, [...args, "--bsc-path", bsc_exe], {
       stdio: "inherit",
     });
   }
diff --git a/packages/@rescript/darwin-arm64/bin.d.ts b/packages/@rescript/darwin-arm64/bin.d.ts
index 8ee51bed78..e64a217712 100644
--- a/packages/@rescript/darwin-arm64/bin.d.ts
+++ b/packages/@rescript/darwin-arm64/bin.d.ts
@@ -9,5 +9,5 @@ export type BinaryPaths = {
   rescript_legacy_exe: string;
   rescript_tools_exe: string;
   rescript_editor_analysis_exe: string;
-  rewatch_exe: string;
+  rescript_exe: string;
 };
diff --git a/packages/@rescript/darwin-arm64/bin.js b/packages/@rescript/darwin-arm64/bin.js
index 07be3b83e7..86975c991d 100644
--- a/packages/@rescript/darwin-arm64/bin.js
+++ b/packages/@rescript/darwin-arm64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rewatch_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rewatch.exe"),
 };
diff --git a/packages/@rescript/darwin-x64/bin.d.ts b/packages/@rescript/darwin-x64/bin.d.ts
index 8ee51bed78..e64a217712 100644
--- a/packages/@rescript/darwin-x64/bin.d.ts
+++ b/packages/@rescript/darwin-x64/bin.d.ts
@@ -9,5 +9,5 @@ export type BinaryPaths = {
   rescript_legacy_exe: string;
   rescript_tools_exe: string;
   rescript_editor_analysis_exe: string;
-  rewatch_exe: string;
+  rescript_exe: string;
 };
diff --git a/packages/@rescript/darwin-x64/bin.js b/packages/@rescript/darwin-x64/bin.js
index 07be3b83e7..86975c991d 100644
--- a/packages/@rescript/darwin-x64/bin.js
+++ b/packages/@rescript/darwin-x64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rewatch_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rewatch.exe"),
 };
diff --git a/packages/@rescript/linux-arm64/bin.d.ts b/packages/@rescript/linux-arm64/bin.d.ts
index 8ee51bed78..e64a217712 100644
--- a/packages/@rescript/linux-arm64/bin.d.ts
+++ b/packages/@rescript/linux-arm64/bin.d.ts
@@ -9,5 +9,5 @@ export type BinaryPaths = {
   rescript_legacy_exe: string;
   rescript_tools_exe: string;
   rescript_editor_analysis_exe: string;
-  rewatch_exe: string;
+  rescript_exe: string;
 };
diff --git a/packages/@rescript/linux-arm64/bin.js b/packages/@rescript/linux-arm64/bin.js
index 07be3b83e7..86975c991d 100644
--- a/packages/@rescript/linux-arm64/bin.js
+++ b/packages/@rescript/linux-arm64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rewatch_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rewatch.exe"),
 };
diff --git a/packages/@rescript/linux-x64/bin.d.ts b/packages/@rescript/linux-x64/bin.d.ts
index 8ee51bed78..e64a217712 100644
--- a/packages/@rescript/linux-x64/bin.d.ts
+++ b/packages/@rescript/linux-x64/bin.d.ts
@@ -9,5 +9,5 @@ export type BinaryPaths = {
   rescript_legacy_exe: string;
   rescript_tools_exe: string;
   rescript_editor_analysis_exe: string;
-  rewatch_exe: string;
+  rescript_exe: string;
 };
diff --git a/packages/@rescript/linux-x64/bin.js b/packages/@rescript/linux-x64/bin.js
index 07be3b83e7..86975c991d 100644
--- a/packages/@rescript/linux-x64/bin.js
+++ b/packages/@rescript/linux-x64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rewatch_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rewatch.exe"),
 };
diff --git a/packages/@rescript/win32-x64/bin.d.ts b/packages/@rescript/win32-x64/bin.d.ts
index 8ee51bed78..e64a217712 100644
--- a/packages/@rescript/win32-x64/bin.d.ts
+++ b/packages/@rescript/win32-x64/bin.d.ts
@@ -9,5 +9,5 @@ export type BinaryPaths = {
   rescript_legacy_exe: string;
   rescript_tools_exe: string;
   rescript_editor_analysis_exe: string;
-  rewatch_exe: string;
+  rescript_exe: string;
 };
diff --git a/packages/@rescript/win32-x64/bin.js b/packages/@rescript/win32-x64/bin.js
index 07be3b83e7..86975c991d 100644
--- a/packages/@rescript/win32-x64/bin.js
+++ b/packages/@rescript/win32-x64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rewatch_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rewatch.exe"),
 };

From 7d77fb5b85b93784a665a9ec44a6e5bbca8054d0 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Thu, 3 Jul 2025 15:40:01 +0200
Subject: [PATCH 07/17] rewatch.exe -> rescript.exe

---
 packages/@rescript/darwin-arm64/bin.js       | 2 +-
 packages/@rescript/darwin-arm64/package.json | 2 +-
 packages/@rescript/darwin-x64/bin.js         | 2 +-
 packages/@rescript/darwin-x64/package.json   | 2 +-
 packages/@rescript/linux-arm64/bin.js        | 2 +-
 packages/@rescript/linux-arm64/package.json  | 2 +-
 packages/@rescript/linux-x64/bin.js          | 2 +-
 packages/@rescript/linux-x64/package.json    | 2 +-
 packages/@rescript/win32-x64/bin.js          | 2 +-
 packages/@rescript/win32-x64/package.json    | 2 +-
 rewatch/postinstall.js                       | 2 +-
 11 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/packages/@rescript/darwin-arm64/bin.js b/packages/@rescript/darwin-arm64/bin.js
index 86975c991d..7b6f5bed04 100644
--- a/packages/@rescript/darwin-arm64/bin.js
+++ b/packages/@rescript/darwin-arm64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rescript_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rescript.exe"),
 };
diff --git a/packages/@rescript/darwin-arm64/package.json b/packages/@rescript/darwin-arm64/package.json
index 927432e13a..9cf7e758da 100644
--- a/packages/@rescript/darwin-arm64/package.json
+++ b/packages/@rescript/darwin-arm64/package.json
@@ -35,7 +35,7 @@
       "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
-      "./bin/rewatch.exe"
+      "./bin/rescript.exe"
     ]
   },
   "engines": {
diff --git a/packages/@rescript/darwin-x64/bin.js b/packages/@rescript/darwin-x64/bin.js
index 86975c991d..7b6f5bed04 100644
--- a/packages/@rescript/darwin-x64/bin.js
+++ b/packages/@rescript/darwin-x64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rescript_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rescript.exe"),
 };
diff --git a/packages/@rescript/darwin-x64/package.json b/packages/@rescript/darwin-x64/package.json
index 2e2138b70e..6a4e7e408f 100644
--- a/packages/@rescript/darwin-x64/package.json
+++ b/packages/@rescript/darwin-x64/package.json
@@ -35,7 +35,7 @@
       "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
-      "./bin/rewatch.exe"
+      "./bin/rescript.exe"
     ]
   },
   "engines": {
diff --git a/packages/@rescript/linux-arm64/bin.js b/packages/@rescript/linux-arm64/bin.js
index 86975c991d..7b6f5bed04 100644
--- a/packages/@rescript/linux-arm64/bin.js
+++ b/packages/@rescript/linux-arm64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rescript_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rescript.exe"),
 };
diff --git a/packages/@rescript/linux-arm64/package.json b/packages/@rescript/linux-arm64/package.json
index 501cf53c4e..682093c125 100644
--- a/packages/@rescript/linux-arm64/package.json
+++ b/packages/@rescript/linux-arm64/package.json
@@ -35,7 +35,7 @@
       "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
-      "./bin/rewatch.exe"
+      "./bin/rescript.exe"
     ]
   },
   "engines": {
diff --git a/packages/@rescript/linux-x64/bin.js b/packages/@rescript/linux-x64/bin.js
index 86975c991d..7b6f5bed04 100644
--- a/packages/@rescript/linux-x64/bin.js
+++ b/packages/@rescript/linux-x64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rescript_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rescript.exe"),
 };
diff --git a/packages/@rescript/linux-x64/package.json b/packages/@rescript/linux-x64/package.json
index 0c1e073bd8..3b5223c31f 100644
--- a/packages/@rescript/linux-x64/package.json
+++ b/packages/@rescript/linux-x64/package.json
@@ -35,7 +35,7 @@
       "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
-      "./bin/rewatch.exe"
+      "./bin/rescript.exe"
     ]
   },
   "engines": {
diff --git a/packages/@rescript/win32-x64/bin.js b/packages/@rescript/win32-x64/bin.js
index 86975c991d..7b6f5bed04 100644
--- a/packages/@rescript/win32-x64/bin.js
+++ b/packages/@rescript/win32-x64/bin.js
@@ -14,5 +14,5 @@ export const binPaths = {
     binDir,
     "rescript-editor-analysis.exe",
   ),
-  rescript_exe: path.join(binDir, "rewatch.exe"),
+  rescript_exe: path.join(binDir, "rescript.exe"),
 };
diff --git a/packages/@rescript/win32-x64/package.json b/packages/@rescript/win32-x64/package.json
index a299e55ba4..c6846881cb 100644
--- a/packages/@rescript/win32-x64/package.json
+++ b/packages/@rescript/win32-x64/package.json
@@ -35,7 +35,7 @@
       "./bin/rescript-legacy.exe",
       "./bin/rescript-editor-analysis.exe",
       "./bin/rescript-tools.exe",
-      "./bin/rewatch.exe"
+      "./bin/rescript.exe"
     ]
   },
   "engines": {
diff --git a/rewatch/postinstall.js b/rewatch/postinstall.js
index 5b15cd4da3..e4bca5d607 100644
--- a/rewatch/postinstall.js
+++ b/rewatch/postinstall.js
@@ -20,7 +20,7 @@ const installMacLinuxBinary = (binary) => {
 const installWindowsBinary = () => {
   const source = path.join(__dirname, "rewatch-windows.exe");
   if (fs.existsSync(source)) {
-    const target = path.join(__dirname, "rewatch.exe");
+    const target = path.join(__dirname, "rescript.exe");
     fs.renameSync(source, target);
 
     // windows scripts use a different file extension to executables

From f048f5acad9d23e9cb0662e46920a0e510813fc6 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Thu, 3 Jul 2025 15:40:42 +0200
Subject: [PATCH 08/17] Remove rewatch/postinstall.js

---
 rewatch/postinstall.js | 55 ------------------------------------------
 1 file changed, 55 deletions(-)
 delete mode 100644 rewatch/postinstall.js

diff --git a/rewatch/postinstall.js b/rewatch/postinstall.js
deleted file mode 100644
index e4bca5d607..0000000000
--- a/rewatch/postinstall.js
+++ /dev/null
@@ -1,55 +0,0 @@
-const path = require("path");
-const fs = require("fs");
-
-const installMacLinuxBinary = (binary) => {
-  const source = path.join(__dirname, binary);
-  if (fs.existsSync(source)) {
-    // mac and linux support extension-less executables
-    // so just overwrite the shell script
-    const target = path.join(__dirname, "rewatch");
-    fs.renameSync(source, target);
-
-    // The binary should be executable in the bundle, but just in case
-    fs.chmodSync(target, 0777);
-  } else {
-    // assume we're in dev mode - nothing will break if the script
-    // isn't overwritten, it will just be slower
-  }
-};
-
-const installWindowsBinary = () => {
-  const source = path.join(__dirname, "rewatch-windows.exe");
-  if (fs.existsSync(source)) {
-    const target = path.join(__dirname, "rescript.exe");
-    fs.renameSync(source, target);
-
-    // windows scripts use a different file extension to executables
-    // so we delete the script to make sure windows uses the exe now
-    const windowsScript = path.join(__dirname, "rewatch.cmd");
-    fs.unlinkSync(windowsScript);
-  } else {
-    // assume we're in dev mode - nothing will break if the script
-    // isn't overwritten, it will just be slower
-  }
-};
-
-switch (process.platform) {
-  case "linux":
-    if (process.arch === "arm64") {
-      installMacLinuxBinary("rewatch-linux-arm64");
-    } else {
-      installMacLinuxBinary("rewatch-linux");
-    }
-    break;
-  case "darwin":
-    installMacLinuxBinary("rewatch-macos");
-    break;
-  case "win32":
-    installWindowsBinary();
-    break;
-  default:
-    // This won't break the installation because the shell script remains
-    // but that script will throw an error in this case anyway
-    console.warn(`No release available for "${process.platform}"`);
-    process.exit(1);
-}

From 4adf7a7360bdef5504d4acb87a4ff7f3d0d2c03a Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Thu, 3 Jul 2025 15:42:41 +0200
Subject: [PATCH 09/17] Rename runtime build scripts

---
 .github/workflows/ci.yml                                  | 6 +++---
 Makefile                                                  | 4 ++--
 scripts/buildRuntime.sh                                   | 5 ++++-
 scripts/{buildRuntimeRewatch.sh => buildRuntimeLegacy.sh} | 5 +----
 4 files changed, 10 insertions(+), 10 deletions(-)
 rename scripts/{buildRuntimeRewatch.sh => buildRuntimeLegacy.sh} (51%)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6df388f946..3108fb2d16 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -332,12 +332,12 @@ jobs:
 
       - name: Build runtime/stdlib with rewatch
         if: ${{ runner.os != 'Windows' }}
-        run: ./scripts/buildRuntimeRewatch.sh
+        run: ./scripts/buildRuntime.sh
         shell: bash
 
       - name: Build runtime/stdlib with bsb (Windows)
         if: ${{ runner.os == 'Windows' }}
-        run: ./scripts/buildRuntime.sh
+        run: ./scripts/buildRuntimeLegacy.sh
         shell: bash
 
       - name: Check for changes in lib folder
@@ -510,7 +510,7 @@ jobs:
       - name: Build website
         if: steps.diffcheck.outputs.clean == 'false'
         run: |
-          npm ci 
+          npm ci
           npm run build
 
       - name: Commit and push
diff --git a/Makefile b/Makefile
index 8083399fb6..7bd8b5f95d 100644
--- a/Makefile
+++ b/Makefile
@@ -52,10 +52,10 @@ reanalyze:
 	reanalyze.exe -set-exit-code -all-cmt _build/default/compiler _build/default/tests -exclude-paths compiler/outcome_printer,compiler/ml,compiler/frontend,compiler/ext,compiler/depends,compiler/core,compiler/common,compiler/cmij,compiler/bsb_helper,compiler/bsb
 
 lib-bsb:
-	./scripts/buildRuntime.sh
+	./scripts/buildRuntimeLegacy.sh
 
 lib:
-	./scripts/buildRuntimeRewatch.sh
+	./scripts/buildRuntime.sh
 
 artifacts: lib
 	./scripts/npmPack.js --updateArtifactList
diff --git a/scripts/buildRuntime.sh b/scripts/buildRuntime.sh
index 1d3c6a541f..e23f14f402 100755
--- a/scripts/buildRuntime.sh
+++ b/scripts/buildRuntime.sh
@@ -2,7 +2,7 @@
 set -e
 shopt -s extglob
 
-(cd runtime && ../cli/rescript-legacy.js clean && ../cli/rescript-legacy.js build)
+(cd runtime && ../cli/rescript.js clean && ../cli/rescript.js build)
 
 rm -f lib/es6/*.js lib/js/*.js lib/ocaml/*
 mkdir -p lib/es6 lib/js lib/ocaml
@@ -11,3 +11,6 @@ cp runtime/lib/es6/*.js lib/es6
 cp runtime/lib/js/*.js lib/js
 cp runtime/lib/bs/*.@(cmi|cmj|cmt|cmti) lib/ocaml/
 cp runtime/*.@(res|resi) lib/ocaml/
+# overwrite the stdlib build artifacts to the testrepo
+mkdir -p rewatch/testrepo/node_modules/rescript/lib/ocaml
+cp -rf lib/ocaml rewatch/testrepo/node_modules/rescript/lib/ocaml
\ No newline at end of file
diff --git a/scripts/buildRuntimeRewatch.sh b/scripts/buildRuntimeLegacy.sh
similarity index 51%
rename from scripts/buildRuntimeRewatch.sh
rename to scripts/buildRuntimeLegacy.sh
index e23f14f402..1d3c6a541f 100755
--- a/scripts/buildRuntimeRewatch.sh
+++ b/scripts/buildRuntimeLegacy.sh
@@ -2,7 +2,7 @@
 set -e
 shopt -s extglob
 
-(cd runtime && ../cli/rescript.js clean && ../cli/rescript.js build)
+(cd runtime && ../cli/rescript-legacy.js clean && ../cli/rescript-legacy.js build)
 
 rm -f lib/es6/*.js lib/js/*.js lib/ocaml/*
 mkdir -p lib/es6 lib/js lib/ocaml
@@ -11,6 +11,3 @@ cp runtime/lib/es6/*.js lib/es6
 cp runtime/lib/js/*.js lib/js
 cp runtime/lib/bs/*.@(cmi|cmj|cmt|cmti) lib/ocaml/
 cp runtime/*.@(res|resi) lib/ocaml/
-# overwrite the stdlib build artifacts to the testrepo
-mkdir -p rewatch/testrepo/node_modules/rescript/lib/ocaml
-cp -rf lib/ocaml rewatch/testrepo/node_modules/rescript/lib/ocaml
\ No newline at end of file

From 6089fa1d3342c030e65fa079fc15078aeb67f008 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Fri, 4 Jul 2025 11:20:14 +0200
Subject: [PATCH 10/17] Fix gentype tests

---
 tests/gentype_tests/typescript-react-example/package.json | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/gentype_tests/typescript-react-example/package.json b/tests/gentype_tests/typescript-react-example/package.json
index 721b4bf4ba..b72e3819ed 100644
--- a/tests/gentype_tests/typescript-react-example/package.json
+++ b/tests/gentype_tests/typescript-react-example/package.json
@@ -2,9 +2,9 @@
   "name": "@tests/gentype-react-example",
   "private": true,
   "scripts": {
-    "start": "rescript build -w",
-    "build": "rescript",
-    "clean": "rescript clean",
+    "start": "rescript legacy build -w",
+    "build": "rescript legacy build",
+    "clean": "rescript legacy clean",
     "typecheck": "tsc",
     "check": "biome check --changed --no-errors-on-unmatched ."
   },

From ba06140561821c0ed4f3b9fac30cbe5cfb5e9206 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Fri, 4 Jul 2025 11:46:24 +0200
Subject: [PATCH 11/17] Build analysis tests with legacy build system

---
 tests/analysis_tests/tests-generic-jsx-transform/package.json | 4 ++--
 .../tests-incremental-typechecking/package.json               | 4 ++--
 tests/analysis_tests/tests-reanalyze/deadcode/package.json    | 4 ++--
 tests/analysis_tests/tests-reanalyze/termination/package.json | 4 ++--
 tests/analysis_tests/tests/package.json                       | 4 ++--
 5 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/tests/analysis_tests/tests-generic-jsx-transform/package.json b/tests/analysis_tests/tests-generic-jsx-transform/package.json
index e4afaad6f8..7a4f4861f8 100644
--- a/tests/analysis_tests/tests-generic-jsx-transform/package.json
+++ b/tests/analysis_tests/tests-generic-jsx-transform/package.json
@@ -2,8 +2,8 @@
   "name": "@tests/generic-jsx-transform",
   "private": true,
   "scripts": {
-    "build": "rescript",
-    "clean": "rescript clean -with-deps"
+    "build": "rescript legacy build",
+    "clean": "rescript legacy clean"
   },
   "dependencies": {
     "rescript": "workspace:^"
diff --git a/tests/analysis_tests/tests-incremental-typechecking/package.json b/tests/analysis_tests/tests-incremental-typechecking/package.json
index 37e133730d..cd410d8afa 100644
--- a/tests/analysis_tests/tests-incremental-typechecking/package.json
+++ b/tests/analysis_tests/tests-incremental-typechecking/package.json
@@ -2,8 +2,8 @@
   "name": "@tests/incremental-typechecking",
   "private": true,
   "scripts": {
-    "build": "rescript",
-    "clean": "rescript clean -with-deps"
+    "build": "rescript legacy build",
+    "clean": "rescript legacy clean"
   },
   "dependencies": {
     "rescript": "workspace:^"
diff --git a/tests/analysis_tests/tests-reanalyze/deadcode/package.json b/tests/analysis_tests/tests-reanalyze/deadcode/package.json
index ec9305fdb8..c9ff3996f7 100644
--- a/tests/analysis_tests/tests-reanalyze/deadcode/package.json
+++ b/tests/analysis_tests/tests-reanalyze/deadcode/package.json
@@ -2,8 +2,8 @@
   "name": "@tests/reanalyze-deadcode",
   "private": true,
   "scripts": {
-    "build": "rescript",
-    "clean": "rescript clean -with-deps"
+    "build": "rescript legacy build",
+    "clean": "rescript legacy clean"
   },
   "dependencies": {
     "@rescript/react": "link:../../../dependencies/rescript-react",
diff --git a/tests/analysis_tests/tests-reanalyze/termination/package.json b/tests/analysis_tests/tests-reanalyze/termination/package.json
index 3f50de7763..02b2adf3e5 100644
--- a/tests/analysis_tests/tests-reanalyze/termination/package.json
+++ b/tests/analysis_tests/tests-reanalyze/termination/package.json
@@ -2,8 +2,8 @@
   "name": "@tests/reanalyze-termination",
   "private": true,
   "scripts": {
-    "build": "rescript",
-    "clean": "rescript clean -with-deps"
+    "build": "rescript legacy build",
+    "clean": "rescript legacy clean"
   },
   "dependencies": {
     "rescript": "workspace:^"
diff --git a/tests/analysis_tests/tests/package.json b/tests/analysis_tests/tests/package.json
index 2ada6a7cb0..01bbe0ecbb 100644
--- a/tests/analysis_tests/tests/package.json
+++ b/tests/analysis_tests/tests/package.json
@@ -2,8 +2,8 @@
   "name": "@tests/analysis",
   "private": true,
   "scripts": {
-    "build": "rescript",
-    "clean": "rescript clean -with-deps"
+    "build": "rescript legacy build",
+    "clean": "rescript legacy clean"
   },
   "dependencies": {
     "@rescript/react": "link:../../dependencies/rescript-react",

From 5bf245e0442732db866566633efb311ea9b129d9 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Fri, 4 Jul 2025 11:48:07 +0200
Subject: [PATCH 12/17] Build playground with legacy build system

---
 packages/playground/package.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/playground/package.json b/packages/playground/package.json
index c36b14bd40..a384310433 100644
--- a/packages/playground/package.json
+++ b/packages/playground/package.json
@@ -3,9 +3,9 @@
   "name": "playground",
   "type": "commonjs",
   "scripts": {
-    "clean": "rescript clean",
+    "clean": "rescript legacy clean",
     "test": "node ./playground_test.cjs",
-    "build": "rescript clean && rescript build && node scripts/generate_cmijs.mjs && rollup -c",
+    "build": "rescript legacy clean && rescript legacy build && node scripts/generate_cmijs.mjs && rollup -c",
     "upload-bundle": "node scripts/upload_bundle.mjs"
   },
   "dependencies": {

From 42deba892c51851b97ec6e062d4605396d16bd3b Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Fri, 4 Jul 2025 12:07:48 +0200
Subject: [PATCH 13/17] Build more stuff with legacy build system

---
 .github/workflows/ci.yml                       | 2 +-
 analysis/examples/example-project/package.json | 2 +-
 analysis/examples/larger-project/package.json  | 2 +-
 packages/playground/scripts/generate_cmijs.mjs | 6 +++---
 rewatch/testrepo/package.json                  | 6 +++---
 scripts/res/package.json                       | 6 +++---
 tests/docstring_tests/package.json             | 4 ++--
 tests/tools_tests/package.json                 | 4 ++--
 8 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3108fb2d16..d0282276e7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -569,7 +569,7 @@ jobs:
         working-directory: ${{ steps.tmp-dir.outputs.path }}
 
       - name: Test installation
-        run: npx rescript -h && npx rescript build && cat src/Test.res.js
+        run: npx rescript -h && npx rescript legacy build && cat src/Test.res.js
         shell: bash
         working-directory: ${{ steps.tmp-dir.outputs.path }}
 
diff --git a/analysis/examples/example-project/package.json b/analysis/examples/example-project/package.json
index b948ffc3a9..e5b47fcad1 100644
--- a/analysis/examples/example-project/package.json
+++ b/analysis/examples/example-project/package.json
@@ -6,6 +6,6 @@
   "scripts": {
     "build": "rescript",
     "start": "rescript build -w",
-    "clean": "rescript clean -with-deps"
+    "clean": "rescript clean"
   }
 }
diff --git a/analysis/examples/larger-project/package.json b/analysis/examples/larger-project/package.json
index 1426ee18c6..6117fd6087 100644
--- a/analysis/examples/larger-project/package.json
+++ b/analysis/examples/larger-project/package.json
@@ -5,7 +5,7 @@
   "scripts": {
     "start": "rescript build -w",
     "build": "rescript build",
-    "clean": "rescript clean -with-deps"
+    "clean": "rescript clean"
   },
   "devDependencies": {
     "react": "^16.13.1",
diff --git a/packages/playground/scripts/generate_cmijs.mjs b/packages/playground/scripts/generate_cmijs.mjs
index 56b29f50f0..3a6e2db33a 100644
--- a/packages/playground/scripts/generate_cmijs.mjs
+++ b/packages/playground/scripts/generate_cmijs.mjs
@@ -23,8 +23,8 @@ import {
   playgroundPackagesDir,
 } from "./common.mjs";
 
-exec("yarn rescript clean");
-exec("yarn rescript");
+exec("yarn rescript legacy clean");
+exec("yarn rescript legacy");
 
 // We need to build the compiler's builtin modules as a separate cmij.
 // Otherwise we can't use them for compilation within the playground.
@@ -58,7 +58,7 @@ function buildCmij(pkgDir, pkgName) {
 }
 
 /**
- * @param {string} basename 
+ * @param {string} basename
  * @return {boolean}
  */
 function isCmij(basename) {
diff --git a/rewatch/testrepo/package.json b/rewatch/testrepo/package.json
index 2ed3978be5..96689ba989 100644
--- a/rewatch/testrepo/package.json
+++ b/rewatch/testrepo/package.json
@@ -17,10 +17,10 @@
   },
   "scripts": {
     "build": "../target/release/rewatch build .",
-    "build:rescript": "rescript build -with-deps",
+    "build:rescript": "rescript legacy build",
     "watch": "../target/release/rewatch watch .",
-    "watch:rescript": "rescript watch -with-deps",
+    "watch:rescript": "rescript legacy watch",
     "clean": "../target/release/rewatch clean .",
-    "clean:rescript": "rescript clean"
+    "clean:rescript": "rescript legacy clean"
   }
 }
diff --git a/scripts/res/package.json b/scripts/res/package.json
index 92da8de2bc..1168ebeb80 100644
--- a/scripts/res/package.json
+++ b/scripts/res/package.json
@@ -3,9 +3,9 @@
   "type": "module",
   "private": true,
   "scripts": {
-    "build": "rescript",
-    "clean": "rescript clean -with-deps",
-    "dev": "rescript -w",
+    "build": "rescript legacy build",
+    "clean": "rescript legacy clean",
+    "dev": "rescript legacy -w",
     "apidocs:generate": "yarn build && node GenApiDocs.res.js"
   },
   "dependencies": {
diff --git a/tests/docstring_tests/package.json b/tests/docstring_tests/package.json
index e59fa76a42..1cedbd5360 100644
--- a/tests/docstring_tests/package.json
+++ b/tests/docstring_tests/package.json
@@ -3,8 +3,8 @@
   "type": "module",
   "private": true,
   "scripts": {
-    "build": "rescript",
-    "clean": "rescript clean -with-deps",
+    "build": "rescript legacy build",
+    "clean": "rescript legacy clean",
     "dev": "rescript -w"
   },
   "dependencies": {
diff --git a/tests/tools_tests/package.json b/tests/tools_tests/package.json
index f1f0ea9a57..01d0070301 100644
--- a/tests/tools_tests/package.json
+++ b/tests/tools_tests/package.json
@@ -2,8 +2,8 @@
   "name": "@tests/tools",
   "private": true,
   "scripts": {
-    "build": "rescript",
-    "clean": "rescript clean -with-deps",
+    "build": "rescript legacy build",
+    "clean": "rescript legacy clean",
     "dev": "rescript -w"
   },
   "dependencies": {

From cd5b2beba00298e274328f608d1fac819ccea584 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Fri, 4 Jul 2025 13:34:42 +0200
Subject: [PATCH 14/17] CHANGELOG

---
 CHANGELOG.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 40de08b975..5d6124294d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,7 +14,10 @@
 
 #### :boom: Breaking Change
 
-- The legacy rescript cli can be called through rewatch via `rewatch legacy`. Arguments to rewatch need to be passed after the subcommand. Argument `--compiler-args` is now a subcommand `compiler-args`. https://github.com/rescript-lang/rescript/pull/7551
+- New `rewatch` based build system. https://github.com/rescript-lang/rescript/pull/7551 https://github.com/rescript-lang/rescript/pull/7593
+  - The new `rewatch` based build system is now the default and is exposed through the `rescript` command. The `rewatch` command has been removed.
+  - The previous Ninja-based build system is now available via the `rescript legacy` subcommand.
+  - Argument `--compiler-args` is now a subcommand `compiler-args`.
 - Remove `String.getSymbol` from standard library. https://github.com/rescript-lang/rescript/pull/7571
 - Remove `String.getSymbolUnsafe` from standard library. https://github.com/rescript-lang/rescript/pull/7571
 - Remove `String.setSymbol` from standard library. https://github.com/rescript-lang/rescript/pull/7571

From a5bce43744cec7536a073c0cf08252c393ba9636 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Fri, 4 Jul 2025 13:36:07 +0200
Subject: [PATCH 15/17] Testrepo: use pkg.pr.new

---
 rewatch/testrepo/package.json |  2 +-
 rewatch/testrepo/yarn.lock    | 52 +++++++++++++++++------------------
 2 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/rewatch/testrepo/package.json b/rewatch/testrepo/package.json
index 96689ba989..6f1fc22144 100644
--- a/rewatch/testrepo/package.json
+++ b/rewatch/testrepo/package.json
@@ -13,7 +13,7 @@
     ]
   },
   "dependencies": {
-    "rescript": "12.0.0-alpha.13"
+    "rescript": "https://pkg.pr.new/rescript-lang/rescript@6cac813"
   },
   "scripts": {
     "build": "../target/release/rewatch build .",
diff --git a/rewatch/testrepo/yarn.lock b/rewatch/testrepo/yarn.lock
index beb6bf912d..2a52b20be7 100644
--- a/rewatch/testrepo/yarn.lock
+++ b/rewatch/testrepo/yarn.lock
@@ -5,37 +5,37 @@ __metadata:
   version: 8
   cacheKey: 10c0
 
-"@rescript/darwin-arm64@npm:12.0.0-alpha.13":
-  version: 12.0.0-alpha.13
-  resolution: "@rescript/darwin-arm64@npm:12.0.0-alpha.13"
+"@rescript/darwin-arm64@https://pkg.pr.new/rescript-lang/rescript/@rescript/darwin-arm64@6cac813afdfe7b86803256838ac3ce09f7eed641":
+  version: 12.0.0-alpha.15
+  resolution: "@rescript/darwin-arm64@https://pkg.pr.new/rescript-lang/rescript/@rescript/darwin-arm64@6cac813afdfe7b86803256838ac3ce09f7eed641"
   conditions: os=darwin & cpu=arm64
   languageName: node
   linkType: hard
 
-"@rescript/darwin-x64@npm:12.0.0-alpha.13":
-  version: 12.0.0-alpha.13
-  resolution: "@rescript/darwin-x64@npm:12.0.0-alpha.13"
+"@rescript/darwin-x64@https://pkg.pr.new/rescript-lang/rescript/@rescript/darwin-x64@6cac813afdfe7b86803256838ac3ce09f7eed641":
+  version: 12.0.0-alpha.15
+  resolution: "@rescript/darwin-x64@https://pkg.pr.new/rescript-lang/rescript/@rescript/darwin-x64@6cac813afdfe7b86803256838ac3ce09f7eed641"
   conditions: os=darwin & cpu=x64
   languageName: node
   linkType: hard
 
-"@rescript/linux-arm64@npm:12.0.0-alpha.13":
-  version: 12.0.0-alpha.13
-  resolution: "@rescript/linux-arm64@npm:12.0.0-alpha.13"
+"@rescript/linux-arm64@https://pkg.pr.new/rescript-lang/rescript/@rescript/linux-arm64@6cac813afdfe7b86803256838ac3ce09f7eed641":
+  version: 12.0.0-alpha.15
+  resolution: "@rescript/linux-arm64@https://pkg.pr.new/rescript-lang/rescript/@rescript/linux-arm64@6cac813afdfe7b86803256838ac3ce09f7eed641"
   conditions: os=linux & cpu=arm64
   languageName: node
   linkType: hard
 
-"@rescript/linux-x64@npm:12.0.0-alpha.13":
-  version: 12.0.0-alpha.13
-  resolution: "@rescript/linux-x64@npm:12.0.0-alpha.13"
+"@rescript/linux-x64@https://pkg.pr.new/rescript-lang/rescript/@rescript/linux-x64@6cac813afdfe7b86803256838ac3ce09f7eed641":
+  version: 12.0.0-alpha.15
+  resolution: "@rescript/linux-x64@https://pkg.pr.new/rescript-lang/rescript/@rescript/linux-x64@6cac813afdfe7b86803256838ac3ce09f7eed641"
   conditions: os=linux & cpu=x64
   languageName: node
   linkType: hard
 
-"@rescript/win32-x64@npm:12.0.0-alpha.13":
-  version: 12.0.0-alpha.13
-  resolution: "@rescript/win32-x64@npm:12.0.0-alpha.13"
+"@rescript/win32-x64@https://pkg.pr.new/rescript-lang/rescript/@rescript/win32-x64@6cac813afdfe7b86803256838ac3ce09f7eed641":
+  version: 12.0.0-alpha.15
+  resolution: "@rescript/win32-x64@https://pkg.pr.new/rescript-lang/rescript/@rescript/win32-x64@6cac813afdfe7b86803256838ac3ce09f7eed641"
   conditions: os=win32 & cpu=x64
   languageName: node
   linkType: hard
@@ -87,15 +87,15 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"rescript@npm:12.0.0-alpha.13":
-  version: 12.0.0-alpha.13
-  resolution: "rescript@npm:12.0.0-alpha.13"
+"rescript@https://pkg.pr.new/rescript-lang/rescript@6cac813":
+  version: 12.0.0-alpha.15
+  resolution: "rescript@https://pkg.pr.new/rescript-lang/rescript@6cac813"
   dependencies:
-    "@rescript/darwin-arm64": "npm:12.0.0-alpha.13"
-    "@rescript/darwin-x64": "npm:12.0.0-alpha.13"
-    "@rescript/linux-arm64": "npm:12.0.0-alpha.13"
-    "@rescript/linux-x64": "npm:12.0.0-alpha.13"
-    "@rescript/win32-x64": "npm:12.0.0-alpha.13"
+    "@rescript/darwin-arm64": "https://pkg.pr.new/rescript-lang/rescript/@rescript/darwin-arm64@6cac813afdfe7b86803256838ac3ce09f7eed641"
+    "@rescript/darwin-x64": "https://pkg.pr.new/rescript-lang/rescript/@rescript/darwin-x64@6cac813afdfe7b86803256838ac3ce09f7eed641"
+    "@rescript/linux-arm64": "https://pkg.pr.new/rescript-lang/rescript/@rescript/linux-arm64@6cac813afdfe7b86803256838ac3ce09f7eed641"
+    "@rescript/linux-x64": "https://pkg.pr.new/rescript-lang/rescript/@rescript/linux-x64@6cac813afdfe7b86803256838ac3ce09f7eed641"
+    "@rescript/win32-x64": "https://pkg.pr.new/rescript-lang/rescript/@rescript/win32-x64@6cac813afdfe7b86803256838ac3ce09f7eed641"
   dependenciesMeta:
     "@rescript/darwin-arm64":
       optional: true
@@ -111,9 +111,9 @@ __metadata:
     bsc: cli/bsc.js
     bstracing: cli/bstracing.js
     rescript: cli/rescript.js
+    rescript-legacy: cli/rescript-legacy.js
     rescript-tools: cli/rescript-tools.js
-    rewatch: cli/rewatch.js
-  checksum: 10c0/97ad8615b1a1cbace61e050b65a10bbe280c77b4fe693b99aee7d3c6bb0b2ebd284db16a7aec3d65179267dc610a9737fdf74197f6322b1281113fd588fe1b32
+  checksum: 10c0/9ffce64bb8d440ba97ac038e7421a2eb92a6902c0a004101533fdd508990c939bcd1b8aa1da6914fcf678aeefd9f98bd613c675adf46ddfcdd81dd56024ae969
   languageName: node
   linkType: hard
 
@@ -121,6 +121,6 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "testrepo@workspace:."
   dependencies:
-    rescript: "npm:12.0.0-alpha.13"
+    rescript: "https://pkg.pr.new/rescript-lang/rescript@6cac813"
   languageName: unknown
   linkType: soft

From 80e7d1e0b9ed12f9f4c5136d0d7047ecce425de6 Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Fri, 4 Jul 2025 14:05:14 +0200
Subject: [PATCH 16/17] Fix installation test

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d0282276e7..92049f74e7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -581,7 +581,7 @@ jobs:
         working-directory: rewatch/testrepo
 
       - name: Run rewatch integration tests
-        run: ./rewatch/tests/suite-ci.sh node_modules/.bin/rewatch
+        run: ./rewatch/tests/suite-ci.sh node_modules/.bin/rescript
         shell: bash
 
   publish:

From 9dbcb42a2bc386e8e180bbd90c3bfc475ae1852f Mon Sep 17 00:00:00 2001
From: Christoph Knittel <ck@cca.io>
Date: Fri, 4 Jul 2025 21:06:17 +0200
Subject: [PATCH 17/17] Undo comment change

---
 analysis/examples/larger-project/src/res_scanner.res | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/analysis/examples/larger-project/src/res_scanner.res b/analysis/examples/larger-project/src/res_scanner.res
index b625fc4d5a..6b3b8ce34b 100644
--- a/analysis/examples/larger-project/src/res_scanner.res
+++ b/analysis/examples/larger-project/src/res_scanner.res
@@ -62,7 +62,7 @@ let position = scanner => {
 }
 
 /* Small debugging util
-❯ echo 'let msg = "hello"' | ./lib/rescript-legacy.exe
+❯ echo 'let msg = "hello"' | ./lib/rescript.exe
 let msg = "hello"
 ^-^ let 0-3
 let msg = "hello"