Start on adding Niri wayland compositor

Add some initial config for Fuzzel (dmenu replacement) and
Foot (terminal emulator)

programs/niri/default.nix

@@ -0,0 +1,6 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: {}

programs/sway/foot/default.nix

@@ -0,0 +1,48 @@
+{
+  config,
+  fonts,
+  ...
+}: {
+  programs.foot = {
+    enable = true;
+    server.enable = true;
+    settings = {
+      main = {
+        # term = "xterm-256color";
+        title = "foot";
+        locked-title = "no";
+        font = "${fonts.monospace.name}:size=${toString fonts.sizes.applications}";
+        dpi-aware = "yes";
+        pad = "10x10";
+      };
+      bell = {
+        urgent = "no";
+        notify = "no";
+        visual = "no";
+      };
+      cursor = {blink = "yes";};
+      mouse = {hide-when-typing = "yes";};
+      colors = with config.scheme; rec {
+        alpha = 0.9;
+        background = base00;
+        foreground = base05;
+        regular0 = base02;
+        regular1 = red;
+        regular2 = green;
+        regular3 = yellow;
+        regular4 = blue;
+        regular5 = magenta;
+        regular6 = cyan;
+        regular7 = base05;
+        bright0 = base03;
+        bright1 = regular1;
+        bright2 = regular2;
+        bright3 = regular3;
+        bright4 = regular4;
+        bright5 = regular5;
+        bright6 = regular6;
+        bright7 = base04;
+      };
+    };
+  };
+}

programs/sway/fuzzel/default.nix

@@ -0,0 +1,17 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: {
+  programs.fuzzel = {
+    enable = true;
+    settings = {
+      main = {
+        terminal = "${pkgs.foot}/bin/foot";
+        layer = "overlay";
+      };
+      colors.background = "ffffffff";
+    };
+  };
+}