rp2040js: init at 1.1.1

[baileyluTCD]

Initialized the rp2040js package, a javascript based emulator for the raspberry pi pico rp2040.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• Nixpkgs 25.11 Release Notes (or backporting 24.11 and 25.05 Nixpkgs Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
• NixOS 25.11 Release Notes (or backporting 24.11 and 25.05 NixOS Release notes)
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

It should be mentioned that by default the original repository is mainly geared towards usage as a library. Hence, the main module of index.ts is not usable in any fashion from the command line, and instead demo/emulator-run.ts is, which is intended by the authors. Hence the rp2040js binary provided to this package maps to npm run start. This is accomplished via the patch to the tsconfig.json file.

Also of note is that when no --image flag is provided it will look for a binary file called hello_uart.hex in the base of the project to run instead. This was not provided here as I believe it does not make sense to bake into this package considering --image makes the most sense for regular use

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[JuliusFreudenberger]

I have some minor comments and minor style suggestions which you don't necessarily have to implement.

[baileyluTCD]

Hi, thanks for the review, just hoping to get a proper --version flag merged upstream for the testVersion integration test - I suppose I should probably mark this as a draft until then.

[JuliusFreudenberger]

just hoping to get a proper --version flag merged upstream

IMO, the version flag and corresponding check are not strictly necessary for derivations. Of course it makes automatic updates easier, but in the meantime also manual testing updates can be done.