What comes to mind when you think about config files? YAML, JSON, INI — or HCL? I’ve always liked HCL: structured (👀 INI), readable, supports comments (👀 JSON), and no whitespace sensitivity (👀 YAML). It comes from HashiCorp and is used in tools like Nomad. But in my “Cells for NetBSD” rewrite, it wasn’t an option → no Go in the base system. So I went a different route: 👉 Lua as a config/DSL layer (already part of NetBSD) Works surprisingly well — feels a lot like HCL, just without extra dependencies. Side note: cellman is now in C, logic lives in libcellman, shared by CLI + TUI → no IPC glue near the control plane 👍 👉 Curious: Have you ever considered Lua as a config parser? Details: https://github.com/MatthiasPetermann/netbsd-src/blob/netbsd-11-cellman/doc/specs/cells/02-dsl-and-desired-state.md