dev: Make the serve-docs command uncached

flake-modules/dev/devshell.nix

@@ -81,10 +81,9 @@
 
                 echo -e "\n=> Documentation successfully built ('$doc_derivation')"
 
-                port=8000
-                echo -e "\n=> Now open your browser and navigate to 'localhost:$port'\n"
+                echo -e "\n=> You can then open your browser to view the doc\n"
 
-                ${pkgs.lib.getExe pkgs.python3} -m http.server -d "$doc_derivation"/share/doc
+                (cd "$doc_derivation"/share/doc && ${pkgs.lib.getExe pkgs.python3} ${./server.py})
               '';
             }
             {

flake-modules/dev/server.py

@@ -0,0 +1,16 @@
+import http.server
+
+PORT = 8000
+
+
+class UncachedHTTPHandler(http.server.SimpleHTTPRequestHandler):
+    def end_headers(self):
+        self.send_header("Cache-Control", "no-cache, no-store, must-revalidate")
+        self.send_header("Pragma", "no-cache")
+        self.send_header("Expires", "0")
+        super().end_headers()
+
+
+with http.server.HTTPServer(("", PORT), UncachedHTTPHandler) as httpd:
+    print(f"Serving documentation at http://localhost:{PORT}")
+    httpd.serve_forever()