pkgs/servers/gemini/molly-brown/default.nix: use fetchFromGitea, add …

…tests, improve meta

- Replace fetchgit with fetchFromGitea for better source fetching
- Add longDescription to provide more package information
- Enable test suite during build with doCheck
- Add platforms attribute to specify supported systems
- Add comments to explain ldflags
- Improve code formatting and organization

pkgs/servers/gemini/molly-brown/default.nix

@@ -1,26 +1,47 @@
-{ lib, buildGoModule, fetchgit, nixosTests }:
+{ lib
+, buildGoModule
+, fetchFromGitea
+, nixosTests
+}:
 
 buildGoModule rec {
   pname = "molly-brown";
   version = "unstable-2023-02-10";
-
-  src = fetchgit {
-    url = "https://tildegit.org/solderpunk/molly-brown.git";
+
+  src = fetchFromGitea {
+    domain = "tildegit.org";
+    owner = "solderpunk";
+    repo = "molly-brown";
     rev = "56d8dde14abc90b784b7844602f12100af9756e0";
     hash = "sha256-kfopRyCrDaiVjKYseyWacIT9MJ8PzB8LAs6YMgYqCrs=";
   };
 
   vendorHash = "sha256-czfHnXS9tf5vQQNXhWH7DStmhsorSc4Di/yZuv4LHRk=";
+
+  ldflags = [
+    "-s"  # Omit symbol table and debug information
+    "-w"  # Omit DWARF symbol table
+  ];
 
-  ldflags = [ "-s" "-w" ];
+  # Ensure tests are run during build
+  doCheck = true;
 
-  passthru.tests.basic = nixosTests.molly-brown;
+  passthru = {
+    tests = {
+      basic = nixosTests.molly-brown;
+    };
+  };
 
   meta = with lib; {
     description = "Full-featured Gemini server";
+    longDescription = ''
+      Molly Brown is a full-featured Gemini server implementation written in Go,
+      supporting virtual hosting, CGI, SCGI, FastCGI, and more.
+    '';
     mainProgram = "molly-brown";
     homepage = "https://tildegit.org/solderpunk/molly-brown";
     maintainers = with maintainers; [ ehmry ];
     license = licenses.bsd2;
+    platforms = platforms.unix;
   };
 }