nixos/lemurs: init

[Stunkymonkey]

Description of changes

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/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (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.

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[coastalwhite]

Creator and maintainer of lemurs here. If you need anything else to make this possible, let me know.

[Stunkymonkey]

@coastalwhite i added a basic test.

should we offer options to configure /etc/lemurs/wms//etc/lemurs/wayland?

[coastalwhite]

No if possible. We should use the xsessions and wayland sessions standard directories. That way if people add window managers or desktop environments, they should show up automatically.

There are both CLI and config options to set the paths to those.

[coastalwhite]

If you want an example on how that is done, you can take a look here.

https://github.com/NullCub3/lemurs/blob/nixosmodule-dev/nix/lemurs-module.nix

They use the existing sessionData to set both the xsessions and waylandSessions in the config.

[phanirithvij]

There's also master...Vonfry:nixpkgs:init-lemurs-module by @Vonfry who wrote the ly module #297434. No pr was made for it, it seems.

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/lemurs-dm-doesnt-work/45300/3

[supermarin]

+1 what's needed to move this forward?
I saw on Discourse that the lemurs package itself is outdated in nixpkgs, other than that any other blockers?

[Stunkymonkey]

@supermarin so the "start" part is done. I used to test it on my raspberry-pi and it showed up, but sadly login was never perfect. tty works fine.

So everything including and after login, is missing. Feel free to work on it.

For testing I used:

  services.lemurs.enable = true;
  environment.etc."lemurs/wayland/sway" = {
    enable = true;
    mode = "0755";
    text = ''
      #! /bin/sh
      exec ${lib.getExe pkgs.sway}
    '';
  };

[supermarin]

@Stunkymonkey thanks! didn't know it's in a non working state, don't have bandwidth to troubleshoot it ATM. Have you tried with the newer lemurs (0.3.2-unstable) that was just merged?

[nullcubee]

FYI, #384243 was also merged, which updates lemurs to 0.4.0.

I've been doing some testing on my own module which uses the latest version and I've been running into the same sort of issues, TTY login works fine but I can't seem to get a graphical session working correctly. Not sure what's up, mine has something to do with dbus saying it can't initialize an X11 session, even though I'm trying to start a wayland one. Haven't tested for X11 yet.

I think I might give some testing on this module a shot as well, see if I can figure out anything.