add: ollama waybar integration, modified cloud config to add ollama systemd service

defaults/waybar/config

@@ -2,7 +2,7 @@
   "layer": "top",
   "modules-left": ["sway/workspaces"],
   "modules-center": ["clock"],
-  "modules-right": ["custom/playerctl", "custom/weather", "pulseaudio", "custom/network", "tray"],
+  "modules-right": ["custom/playerctl", "custom/weather", "pulseaudio", "custom/network", "custom/ollama", "tray"],
   "sway/workspaces": {
     "disable-scroll": true,
     "all-outputs": true,
@@ -42,6 +42,14 @@
     "interval": 5,
     "tooltip": false
   },
+  "custom/ollama": {
+    "format": "{text}",
+    "return-type": "json",
+    "exec": "bash $HOME/.config/waybar/ollama.sh",
+    "on-click": "bash $HOME/.config/waybar/ollama.sh toggle",
+    "interval": 2,
+    "tooltip": true
+  },
   "pulseaudio": {
     "format": "{icon} {volume}%",
     "format-bluetooth": "{icon} {volume}%",

defaults/waybar/ollama.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -u
+
+service=ollama.service
+
+# The shared Waybar config is also used by hosts without Ollama.
+if ! systemctl --user cat "$service" >/dev/null 2>&1; then
+  exit 0
+fi
+
+if [[ ${1:-} == toggle ]]; then
+  if systemctl --user is-active --quiet "$service"; then
+    systemctl --user stop "$service"
+  else
+    systemctl --user start "$service"
+  fi
+  exit $?
+fi
+
+if systemctl --user is-active --quiet "$service"; then
+  printf '%s\n' '{"text":"<span foreground=\"#9ece6a\">●</span> Local AI","tooltip":"Ollama is running. Click to stop it.","class":"running"}'
+else
+  printf '%s\n' '{"text":"<span foreground=\"#f7768e\">●</span> Local AI","tooltip":"Ollama is stopped. Click to start it.","class":"stopped"}'
+fi

defaults/waybar/style.css

@@ -32,10 +32,11 @@ window#waybar {
 #memory,
 #pulseaudio,
 #custom-network,
+#custom-ollama,
 #battery,
 #clock,
 #custom-playerctl {
-  padding: 0 10px;
+  padding: 0 5px;
   margin: 0 5px;
 }
 

home/sway.nix

@@ -37,6 +37,7 @@ in {
   xdg.configFile."waybar/config".source = lib.mkForce (dirs.defaults + /waybar/config);
   xdg.configFile."waybar/style.css".source = lib.mkForce (dirs.defaults + /waybar/style.css);
   xdg.configFile."waybar/network.sh".source = dirs.defaults + /waybar/network.sh;
+  xdg.configFile."waybar/ollama.sh".source = dirs.defaults + /waybar/ollama.sh;
 
   home.packages = with pkgs; [ curl iproute2 networkmanager ];
 

modules/machine/cloud/configuration.nix

@@ -86,6 +86,18 @@ in {
     vlc
   ];
 
+  systemd.user.services.ollama = {
+    description = "Ollama local AI server";
+    serviceConfig = {
+      ExecStart = "${pkgs.ollama-rocm}/bin/ollama serve";
+      Restart = "on-failure";
+      Environment = [
+        "OLLAMA_HOST=0.0.0.0:11434"
+        "OLLAMA_CONTEXT_LENGTH=64000"
+      ];
+    };
+  };
+
   # Enable Polkit
   security.polkit.enable = true;