Install probe-rs in nvchad

[mclane]

I am looking to set up a development environment for the raspberry pi pico using the pi pico debug adapter together with probe-rs. I succeeded to get it working in astrovim as described in the wiki:

return {
"mfussenegger/nvim-dap"
opts = function()
  local dap = require("dap")
  if not dap.adapters then dap.adapters = {} end
  dap.adapters["probe-rs-debug"] = {
    type = "server",
    port = "${port}",
    executable = {
      command = vim.fn.expand "$HOME/.cargo/bin/probe-rs",
      args = { "dap-server", "--port", "${port}" },
    },
  }
  -- Connect the probe-rs-debug with rust files. Configuration of the debugger is done via project_folder/.vscode/launch.json
  require("dap.ext.vscode").type_to_filetypes["probe-rs-debug"] = { "rust" }
  -- Set up of handlers for RTT and probe-rs messages.
  -- In addition to nvim-dap-ui I write messages to a probe-rs.log in project folder
  -- If RTT is enabled, probe-rs sends an event after init of a channel. This has to be confirmed or otherwise probe-rs wont sent the rtt data.
  dap.listeners.before["event_probe-rs-rtt-channel-config"]["plugins.nvim-dap-probe-rs"] = function(session, body)
    local utils = require "dap.utils"
    utils.notify(
      string.format('probe-rs: Opening RTT channel %d with name "%s"!', body.channelNumber, body.channelName)
    )
    local file = io.open("probe-rs.log", "a")
    if file then
      file:write(
        string.format(
          '%s: Opening RTT channel %d with name "%s"!\n',
          os.date "%Y-%m-%d-T%H:%M:%S",
          body.channelNumber,
          body.channelName
        )
      )
    end
    if file then file:close() end
    session:request("rttWindowOpened", { body.channelNumber, true })
  end
  -- After confirming RTT window is open, we will get rtt-data-events.
  -- I print them to the dap-repl, which is one way and not separated.
  -- If you have better ideas, let me know.
  dap.listeners.before["event_probe-rs-rtt-data"]["plugins.nvim-dap-probe-rs"] = function(_, body)
    local message =
      string.format("%s: RTT-Channel %d - Message: %s", os.date "%Y-%m-%d-T%H:%M:%S", body.channelNumber, body.data)
    local repl = require "dap.repl"
    repl.append(message)
    local file = io.open("probe-rs.log", "a")
    if file then file:write(message) end
    if file then file:close() end
  end
  -- Probe-rs can send messages, which are handled with this listener.
  dap.listeners.before["event_probe-rs-show-message"]["plugins.nvim-dap-probe-rs"] = function(_, body)
    local message = string.format("%s: probe-rs message: %s", os.date "%Y-%m-%d-T%H:%M:%S", body.message)
    local repl = require "dap.repl"
    repl.append(message)
    local file = io.open("probe-rs.log", "a")
    if file then file:write(message) end
    if file then file:close() end
  end
}

However, this does not work with nvchad, which I am using normally. NVChad throws an error "Failed to run config for nvim-dap". If I replace

opts = function() ...

by

config = function() ...

the error disappears, but the launch configuration in .vscode/launch.json defining the config for probe-rs is not recognized. Therefore, I cannot start a debugging session on the embedded target. How can I overcome this problem? Thanks for any additional hint to me being a newbie!