a lot of shit also baibai home manager, hello hjem

modules/flake/lib/default.nix

@@ -0,0 +1,55 @@
+# following https://github.com/NixOS/nixpkgs/blob/77ee426a4da240c1df7e11f48ac6243e0890f03e/lib/default.nix
+# as a rough template we can create our own extensible lib and expose it to the flake
+# we can then use that elsewhere like our hosts
+{inputs, ...}: let
+  lib0 = inputs.nixpkgs.lib;
+
+  olympusLib = lib0.makeExtensible (
+    self: let
+      lib = self;
+    in {
+      template = import ./template; # templates, selections of code that are repeated
+      helpers = import ./helpers.nix {inherit lib;};
+      programs = import ./programs.nix {inherit lib;};
+      secrets = import ./secrets.nix {inherit inputs;};
+      services = import ./services.nix {inherit lib;};
+      validators = import ./validators.nix {inherit lib;};
+
+      # we have to rexport the functions we want to use, but don't want to refer to the whole lib
+      # "path". e.g. lib.hardware.isx86Linux can be shortened to lib.isx86Linux
+      # NOTE: never rexport templates
+      inherit (self.builders) mkSystems;
+      inherit
+        (self.helpers)
+        mkPubs
+        giturl
+        filterNixFiles
+        importNixFiles
+        importNixFilesAndDirs
+        boolToNum
+        containsStrings
+        indexOf
+        intListToStringList
+        ;
+      inherit (self.programs) mkProgram;
+      inherit (self.secrets) mkSecret mkSecretWithPath;
+      inherit (self.services) mkGraphicalService mkHyprlandService mkServiceOption;
+      inherit
+        (self.validators)
+        ifTheyExist
+        isAcceptedDevice
+        isWayland
+        ifOneEnabled
+        isModernShell
+        anyHome
+        ;
+    }
+  );
+
+  # we need to extend olympusLib with the nixpkgs lib to get the full set of functions
+  # if we do it the otherway around we will get errors saying mkMerge and so on don't exist
+  finalLib = olympusLib.extend (_: _: lib0);
+in {
+  flake.lib = finalLib;
+  perSystem._module.args.lib = finalLib;
+}