XMonad.Hooks.RefocusLast is unstable about dotfiles

[Lenivaya]

I checked your config and seems like i have quick-fix for you

Just add unstable channel

sudo nix-channel --add "https://nixos.org/channels/nixpkgs-unstable" unstable

And then in your configuration.nix

nixpkgs.overlays = [
  (self: super:
    with super; {
      my = {
        unstable = import <unstable> { inherit config; };
    })
];

Now you can access unstable via pkgs.unstable, this is exactly what we need because we want install xmonad from unstable channel( especially xmonad-contrib, which is only 0.15 version on stable channel )

And all you have to do is to set xmonad.haskellPackages to use unstable channel:

services.xserver.windowManager.xmonad.haskellPackages = pkgs.unstable.haskellPackages;

[Lenivaya]

While i was writing this i noticed "xmonad-contrib_0_16" package, but i still recommend to install xmonad from unstable so as not to wait for releases for a long time.

[jcguu95]

Thanks so much for reaching out!

I added the unstable channel, and added the following in to my configuration.nix:

nixpkgs.overlays = [
  (self: super:
    with super; {
      my = {
        unstable = import <unstable> { inherit config; };
    };})  ### trivial fix here
];

services.xserver.windowManager.xmonad.haskellPackages = pkgs.unstable.haskellPackages;

But it seems that unstable.HaskellPackages does not exist, as suggested by the error message:

attribute 'unstable' missing, at..

I've also tried pkgs.haskellPackages.unstable and pkgs.unstableHaskellPackages without luck.

---

I should say I'm very new to nixOS. There might be an easy fix that I don't know. I will level up my skills and come back later :) Thank you!

[Lenivaya]

Well, seems like it's just my typo

Try this, should work

nixpkgs.overlays = [
  (self: super:
    with super; {  
        unstable = import <unstable> { inherit config; };
    }) 
];

[jcguu95]

That solves this particular issue. Thank you.

Though there's another complaint of not finding this package, I should close this as it's another issue.

[Lenivaya]

Add gloss to haskellPackages and all must compile

[jcguu95]

Compiled. Wow. Gorgeous 👍