xmobar

configuration.nix

@@ -43,7 +43,13 @@
         defaultSession = "none+xmonad";
       };
       libinput.enable = true; # Enable touchpad.
-      windowManager.xmonad.enable = true;
+      windowManager.xmonad = {
+        enable = true;
+        flake = {
+          enable = true;
+          compiler = "ghc924";
+        };
+      };
       xkb.layout = "de";
     };
     # Enable CUPS to print.
@@ -91,7 +97,10 @@
     '';
   };
 
-  nixpkgs.config.allowUnfree = true;
+  nixpkgs.config = {
+    allowUnfree = true;
+    permittedInsecurePackages = [ "electron-25.9.0" ];
+  };
 
   # Enable zsh for setting it as shell for users.
   programs.zsh.enable = true;

flake.nix

@@ -26,8 +26,19 @@
               useUserPackages = true;
               users.elias = import ./home/default.nix;
             };
-            nixpkgs.overlays = [ inputs.neovim-nightly-overlay.overlay ];
+            nixpkgs.overlays = [
+              (final: prev: {
+                xmobar = final.haskellPackages.callPackage
+                  ./home/programs/xmonad/src/xmobar/default.nix { };
+              })
+              inputs.neovim-nightly-overlay.overlay
+            ];
           }
+        ] ++ xmonad-contrib.nixosModules ++ [
+          # `modernise` replaces the standard xmonad module and wrapper script
+          # with those from unstable. This is currently a necessary workaround to
+          # make Mod-q recompilation work.
+          xmonad-contrib.modernise."x86_64-linux"
         ];
       };
     };

home/programs/xmonad/src/xmobar/default.nix

@@ -0,0 +1,13 @@
+{ pkgs ? import <nixpkgs> { } }:
+with pkgs;
+haskellPackages.mkDerivation {
+  pname = "xmobar";
+  version = "0.1.0.0";
+  src = /etc/nixos/home/programs/xmonad/src/xmobar/.;
+  isLibrary = false;
+  isExecutable = true;
+  executableHaskellDepends = with haskellPackages; [ base xmobar ];
+  license = "unknown";
+  hydraPlatforms = lib.platforms.none;
+}
+

home/programs/xmonad/src/xmobar/xmobar-custom.cabal

@@ -0,0 +1,54 @@
+cabal-version:      3.0
+-- The cabal-version field refers to the version of the .cabal specification,
+-- and can be different from the cabal-install (the tool) version and the
+-- Cabal (the library) version you are using. As such, the Cabal (the library)
+-- version used must be equal or greater than the version stated in this field.
+-- Starting from the specification version 2.2, the cabal-version field must be
+-- the first thing in the cabal file.
+
+-- Initial package description 'xmobar-custom' generated by
+-- 'cabal init'. For further documentation, see:
+--   http://haskell.org/cabal/users-guide/
+--
+-- The name of the package.
+name:               xmobar-custom
+
+-- The package version.
+-- See the Haskell package versioning policy (PVP) for standards
+-- guiding when and how versions should be incremented.
+-- https://pvp.haskell.org
+-- PVP summary:     +-+------- breaking API changes
+--                  | | +----- non-breaking API additions
+--                  | | | +--- code changes with no API change
+version:            0.1.0.0
+
+-- The package author(s).
+author:             einfischy
+
+-- An email address to which users can send suggestions, bug reports, and patches.
+maintainer:         accounts.codeberg@kstn.in
+
+-- A copyright notice.
+-- copyright:
+build-type:         Simple
+
+common warnings
+    ghc-options: -Wall -threaded
+
+executable xmobar
+    -- Import common warning flags.
+    import:           warnings
+
+    -- .hs or .lhs file containing the Main module.
+    main-is:          xmobar.hs
+
+    -- Other library packages from which modules are imported.
+    build-depends:    base ^>=4.17.2.1,
+                      xmobar ^>=0.47.1
+
+    -- Directories containing source files.
+    hs-source-dirs:   .
+
+    -- Base language which the package is written in.
+    default-language: Haskell2010
+

home/programs/xmonad/src/xmobar/xmobar.hs

@@ -0,0 +1,62 @@
+import Xmobar
+
+config :: Config
+config =
+  defaultConfig
+    { font = "Fira Code"
+    , position    = TopH 30
+    , borderColor = "#1e2030"
+    , border      = FullB
+    , borderWidth = 3
+    , bgColor     = "#24273a"
+    , fgColor     = "#cad3f5"
+    , commands = [ Run $ Cpu [ "--template", "<fc=#a9a1e1><fn=1>\xf085</fn></fc> <total>%"
+                             , "--Low","3"
+                             , "--High","50"
+                             , "--low","#bbc2cf"
+                             , "--normal","#bbc2cf"
+                             , "--high","#fb4934"] 50
+                 , Run $ Memory ["-t","<fc=#51afef><fn=1>\xF2DB</fn></fc> <usedratio>%"
+                                ,"-H","80"
+                                ,"-L","10"
+                                ,"-l","#bbc2cf"
+                                ,"-n","#bbc2cf"
+                                ,"-h","#fb4934"] 50
+                 , Run $ Date "<fc=#ECBE7B><fn=1>\xf017</fn></fc> %a %b %_d %H:%M" "date" 300
+                 , Run $ DynNetwork ["-t","<fc=#4db5bd><fn=1>\xf063</fn></fc> <rx> <fc=#c678dd><fn=1>\xf062</fn></fc> <tx>"
+                                    ,"-H","200"
+                                    ,"-L","10"
+                                    ,"-h","#bbc2cf"
+                                    ,"-l","#bbc2cf"
+                                    ,"-n","#bbc2cf"] 50
+                 , Run $ CoreTemp ["-t", "<fc=#CDB464><fn=1>\xf2c7</fn></fc> <core0>°"
+                                  , "-L", "30"
+                                  , "-H", "75"
+                                  , "-l", "lightblue"
+                                  , "-n", "#bbc2cf"
+                                  , "-h", "#aa4450"] 50
+                 , Run $ BatteryP [ "BAT1" ]
+                                [ "--template" , "<fc=#B1DE76><fn=1>\xf240</fn></fc> <acstatus>"
+                                , "--Low"      , "10"        -- units: %
+                                , "--High"     , "80"        -- units: %
+                                , "--low"      , "#fb4934"
+                                , "--normal"   , "#bbc2cf"
+                                , "--high"     , "#98be65"
+                                , "--" -- battery specific options
+                                       -- discharging status
+                                       , "-o"   , "<left>% (<timeleft>)"
+                                       -- AC "on" status
+                                       , "-O"   , "<left>% (<fc=#98be65>Charging</fc>)"
+                                       -- charged status
+                                       , "-i"   , "<fc=#98be65>Charged</fc>"
+                                ] 50
+                 , Run XMonadLog
+                 ]
+    , sepChar     = "%"
+    , alignSep    = "}{"
+    , template = "%XMonadLog% }{ %cpu% | %coretemp% | %memory% | %battery% | %dynnetwork% | %date%  |"
+    }
+
+main :: IO ()
+main = xmobar config
+