diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 6f78f44c5670..dc9f4b706261 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -21417,6 +21417,12 @@
     githubId = 33031;
     name = "Greg Pfeil";
   };
+  semtexerror = {
+    email = "github@spampert.com";
+    github = "SemtexError";
+    githubId = 8776314;
+    name = "Robin";
+  };
   sengaya = {
     email = "tlo@sengaya.de";
     github = "sengaya";
diff --git a/pkgs/by-name/do/docfx/package.nix b/pkgs/by-name/do/docfx/package.nix
new file mode 100644
index 000000000000..e1d14f4f4f61
--- /dev/null
+++ b/pkgs/by-name/do/docfx/package.nix
@@ -0,0 +1,23 @@
+{
+  lib,
+  buildDotnetGlobalTool,
+  dotnetCorePackages,
+}:
+
+buildDotnetGlobalTool {
+  pname = "docfx";
+  version = "2.78.3";
+
+  dotnet-sdk = dotnetCorePackages.sdk_8_0;
+  dotnet-runtime = dotnetCorePackages.runtime_8_0;
+
+  nugetHash = "sha256-hLb6OmxqXOOxFaq/N+aZ0sAzEYjU0giX3c1SWQtKDbs=";
+
+  meta = {
+    description = "Build your technical documentation site with docfx, with landing pages, markdown, API reference docs for .NET, REST API and more";
+    homepage = "https://github.com/dotnet/docfx";
+    license = lib.licenses.mit;
+    mainProgram = "docfx";
+    maintainers = with lib.maintainers; [ semtexerror ];
+  };
+}