docs(archive): Preserve PR #5502

docs/pr-discussions/PR-5502-docs-b-0860-nemerle-dotnet-support-compile-time-macro-metapr.md

@@ -0,0 +1,66 @@
+---
+pr_number: 5502
+title: "docs(B-0860): Nemerle dotnet support \u2014 compile-time macro metaprogramming complementing F# type providers (Aaron 2026-05-27)"
+author: "AceHack"
+state: "MERGED"
+created_at: "2026-05-27T16:23:51Z"
+merged_at: "2026-05-27T16:25:12Z"
+closed_at: "2026-05-27T16:25:12Z"
+head_ref: "backlog/b-0860-nemerle-dotnet-macro-metaprogramming-2026-05-27"
+base_ref: "main"
+archived_at: "2026-05-27T16:48:03Z"
+archive_tool: "tools/pr-preservation/archive-pr.ts"
+---
+
+# PR #5502: docs(B-0860): Nemerle dotnet support — compile-time macro metaprogramming complementing F# type providers (Aaron 2026-05-27)
+
+## PR description
+
+## Summary
+
+Files B-0860 substrate-engineering target row for extending dotnet
+metaprogramming capability beyond F# type providers + Roslyn Source
+Generators via Nemerle's compile-time macro-based syntax extension.
+
+Operator conversation thread:
+
+> *\"i guess you can do that with templates if you are deiciplined\"*
+>
+> *\"this is why we shold support nmerle for dotnet\"*
+
+The substrate-engineering insight: C++ templates put discipline on
+user; Nemerle macros put discipline INTO the language. Aligns with
+framework's general \"encoding rules without mechanizing them
+produces a memory of failures, not prevention\" pattern.
+
+## Row content highlights
+
+- Capability gap analysis (F# vs C# vs Nemerle on 6 metaprogramming
+  surfaces)
+- Relationship-type-inference substrate-engineering target (from same
+  2026-05-27 conversation thread; PR #5497 razor-anchor-friend-pact
+  substrate composes)
+- 5 sub-row decomposition for future implementation
+- Mika 2026-05-18 substrate anchor verbatim preserved (Nemerle in
+  operator's substrate-engineering-language-spectrum)
+- JetBrains MPS substrate connection (upstream-prior-art)
+- Substrate verification per verify-existing-substrate-before-
+  authoring rule
+
+Priority: P3 (substrate-engineering target; not urgent).
+
+## Test plan
+
+- [x] Markdownlint clean (no MD004 leading-+ continuations)
+- [x] No prior B-0860 row on main + no in-flight (ID-allocation
+      discipline applied)
+- [x] Substrate-verification pass per rule before authoring
+- [ ] CI passes (auto-merge to fire on green)
+
+🤖 Generated with [Claude Code](https://claude.com/claude-code)
+
+## General comments
+
+### @chatgpt-codex-connector (2026-05-27T16:23:57Z)
+
+You have reached your Codex usage limits for code reviews. You can see your limits in the [Codex usage dashboard](https://chatgpt.com/codex/cloud/settings/usage).