From 7af679269d91f666d5ef0160490f18f203abc85c Mon Sep 17 00:00:00 2001
From: Michael Hoang <enzime@users.noreply.github.com>
Date: Sat, 5 Jul 2025 16:28:31 +1000
Subject: [PATCH 1/2] nixos-anywhere: remove unnecessary `nix copy
 --derivation`

---
 src/nixos-anywhere.sh | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/src/nixos-anywhere.sh b/src/nixos-anywhere.sh
index 2ee38a74..ca3185c9 100755
--- a/src/nixos-anywhere.sh
+++ b/src/nixos-anywhere.sh
@@ -711,11 +711,6 @@ runDisko() {
     nixCopy --to "ssh://$sshConnection?$sshStoreSettings" "$diskoScript"
   elif [[ ${buildOn} == "remote" ]]; then
     step Building disko script
-    # We need to do a nix copy first because nix build doesn't have --no-check-sigs
-    # Use ssh:// here to avoid https://github.com/NixOS/nix/issues/7359
-    nixCopy --to "ssh://$sshConnection?$sshStoreSettings" "${flake}#${flakeAttr}.system.build.${diskoMode}Script" \
-      --derivation --no-check-sigs
-    # If we don't use ssh-ng here, we get `error: operation 'getFSAccessor' is not supported by store`
     diskoScript=$(
       nixBuild "${flake}#${flakeAttr}.system.build.${diskoAttr}" \
         --eval-store auto --store "ssh-ng://$sshConnection?ssh-key=$tempDir%2Fnixos-anywhere&$sshStoreSettings"
@@ -733,11 +728,6 @@ nixosInstall() {
     nixCopy --to "ssh://$sshConnection?remote-store=local%3Froot=%2Fmnt&$sshStoreSettings" "$nixosSystem"
   elif [[ ${buildOn} == "remote" ]]; then
     step Building the system closure
-    # We need to do a nix copy first because nix build doesn't have --no-check-sigs
-    # Use ssh:// here to avoid https://github.com/NixOS/nix/issues/7359
-    nixCopy --to "ssh://$sshConnection?remote-store=local%3Froot=%2Fmnt&$sshStoreSettings" "${flake}#${flakeAttr}.system.build.toplevel" \
-      --derivation --no-check-sigs
-    # If we don't use ssh-ng here, we get `error: operation 'getFSAccessor' is not supported by store`
     nixosSystem=$(
       nixBuild "${flake}#${flakeAttr}.system.build.toplevel" \
         --eval-store auto --store "ssh-ng://$sshConnection?ssh-key=$tempDir%2Fnixos-anywhere&remote-store=local%3Froot=%2Fmnt&$sshStoreSettings"

From f14e1e4b7ee6c33bf8325bc61f4e8268adc345d9 Mon Sep 17 00:00:00 2001
From: Michael Hoang <enzime@users.noreply.github.com>
Date: Sat, 5 Jul 2025 16:41:27 +1000
Subject: [PATCH 2/2] nixos-anywhere: use SSH store compression to speed up
 installation

---
 src/nixos-anywhere.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nixos-anywhere.sh b/src/nixos-anywhere.sh
index ca3185c9..5269ff48 100755
--- a/src/nixos-anywhere.sh
+++ b/src/nixos-anywhere.sh
@@ -6,7 +6,7 @@ flake=""
 flakeAttr=""
 kexecUrl=""
 kexecExtraFlags=""
-sshStoreSettings=""
+sshStoreSettings="compress=true"
 enableDebug=""
 nixBuildFlags=()
 diskoAttr=""