Setup link-in-bio page on astral

hosts/astral/links.nix

@@ -0,0 +1,39 @@
+{ pkgs, ... }:
+let
+  domain = "nettika.leaf.ninja";
+  root = "/srv/links";
+  webhookHandler = pkgs.writeScript "webhook-handler.py" ''
+    #!${pkgs.python3}/bin/python3
+
+    import http.server
+    import socketserver
+    import subprocess
+    import os
+
+    class WebhookHandler(http.server.SimpleHTTPRequestHandler):
+        def do_POST(self):
+            os.chdir('${root}')
+            subprocess.run(['${pkgs.git}/bin/git', 'pull'], check=True)
+            self.send_response(200)
+            self.end_headers()
+            self.wfile.write(b'OK')
+
+    with socketserver.TCPServer(("127.0.0.1", 8081), WebhookHandler) as httpd:
+        httpd.serve_forever()
+  '';
+in {
+  systemd.services.links-webhook = {
+    wantedBy = [ "multi-user.target" ];
+    after = [ "network.target" ];
+    serviceConfig = {
+      Type = "simple";
+      ExecStart = "${pkgs.python3}/bin/python3 ${webhookHandler}";
+      Restart = "always";
+    };
+  };
+
+  services.caddy.virtualHosts.${domain}.extraConfig = ''
+    root * ${root}
+    file_server
+  '';
+}