setup custom xmobar package

pkgs/xmobar-config/default.nix

@@ -0,0 +1,5 @@
+{ pkgs }:
+
+pkgs.haskellPackages.developPackage {
+  root = ./.;
+}

pkgs/xmobar-config/src/xmobar-top.hs

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+import Xmobar
+
+-- | Configuration
+config :: Config
+config = defaultConfig
+  -- general settings
+  { font            = "Fira Code Semi Bold 9"
+  , additionalFonts = [ "Symbols Nerd Font 2048-em 24" ]
+  , bgColor         = bg1
+  , fgColor         = fg0
+  , position        = Static { xpos = 0, ypos = 0, width = 2560, height = 24 }
+  -- commands to run
+  , commands =
+      [ Run $ XPropertyLog "_XMONAD_LOG_1"
+      , Run $ Com "uname" ["-r","-s"] "" 0
+      , Run $ Date "%a %b %_d %Y <fc=#d8a657>%H:%M:%S</fc>" "date" 10
+      , Run $ Weather "YPJT"
+                      [ "-t", "Temp: <fc=#d3869b><tempC>C</fc> <fc=#7c6f64>|</fc> Wind: <fc=#a9b665><windKmh>km/h</fc> <fc=#7c6f64>|</fc> Humidity: <fc=#e78a4e><rh>%</fc>" ]
+                      18000
+      ]
+  -- format our bar
+  , sepChar  = "%"
+  , alignSep = "}{"
+  , template = "<hspace=6/><fn=1>\59255</fn>  <fc=#a9b665>%uname%</fc> <fc=#7c6f64>|</fc>%_XMONAD_LOG_1%}{%YPJT% <fc=#7c6f64>|</fc> %date%<hspace=6/>"
+  }
+
+-- | Gruvbox material
+bg0, bg1, fg0, fg1, red, orange, yellow, green, aqua, blue, purple :: String
+-- backgrounds
+bg0    = "#1d2021"
+bg1    = "#282828"
+-- foregrounds
+fg0    = "#d4be98"
+fg1    = "#ddc7a1"
+-- greys
+grey0  = "#7c6f64"
+-- colors
+red    = "#ea6962"
+orange = "#e78a4e"
+yellow = "#d8a658"
+green  = "#a9b665"
+aqua   = "#89b482"
+blue   = "#7daea3"
+purple = "#d3869b"
+
+main :: IO ()
+main = configFromArgs config >>= xmobar

pkgs/xmobar-config/xmobar-config.cabal

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+cabal-version:      3.0
+name:               xmobar-config
+version:            0.1.0.0
+synopsis:           A Minimalistic Text Based Status Bar
+description:        my xmobar configuration
+license:            BSD-3-Clause
+author:             sajenim
+maintainer:         its.jassy@pm.me
+build-type:         Simple
+
+executable xmobar-top
+    main-is:          xmobar-top.hs
+    hs-source-dirs:   src
+    ghc-options:      -Wall -threaded
+    build-depends:    base,
+                      xmobar
+    default-language: Haskell2010
+