refactor: more sane profile structure

profiles/home/common/settings.nix

@@ -0,0 +1,44 @@
+{ lib, inputs, config, ... }:
+{
+  nix =
+    let
+      flakeInputs = lib.filterAttrs (_: lib.isType "flake") inputs;
+    in
+    lib.mkIf (!config.swarselsystems.isNixos) {
+      settings = {
+        experimental-features = [
+          "nix-command"
+          "flakes"
+          "ca-derivations"
+          "cgroups"
+          "pipe-operators"
+        ];
+        trusted-users = [ "@wheel" "swarsel" ];
+        connect-timeout = 5;
+        bash-prompt-prefix = "$SHLVL:\\w ";
+        bash-prompt = "$(if [[ $? -gt 0 ]]; then printf \"\"; else printf \"\"; fi)\[\e[1m\]λ\[\e[0m\] ";
+        fallback = true;
+        min-free = 128000000;
+        max-free = 1000000000;
+        flake-registry = "";
+        auto-optimise-store = true;
+        warn-dirty = false;
+        max-jobs = 1;
+        use-cgroups = lib.mkIf config.swarselsystems.isLinux true;
+      };
+      registry = lib.mapAttrs (_: flake: { inherit flake; }) flakeInputs;
+    };
+
+  programs.home-manager.enable = lib.mkIf (!config.swarselsystems.isNixos) true;
+
+  home = {
+    username = lib.mkDefault "swarsel";
+    homeDirectory = lib.mkDefault "/home/${config.home.username}";
+    stateVersion = lib.mkDefault "23.05";
+    keyboard.layout = "us";
+    sessionVariables = {
+      FLAKE = "${config.home.homeDirectory}/.dotfiles";
+    };
+  };
+
+}