I don't understand dnjs either, but the reasons I use jsonnet over a mainstream language (like Python, Lua or JS) for configuration: - purity (within bounds

I don't understand dnjs either, but the reasons I use jsonnet over a mainstream language (like Python, Lua or JS) for configuration: - purity (within bounds of the local filesystem state; no dynamically computed imports; no networking; no file writes) - declarative, lazily evaluated - override syntax (allowing for a balance between explicitly defined APIs and some level of monkeypatching) - file-relative import syntax - simple interpreter that's easily embeddable into tools (no modules, no interpreter path, no global configuration files, etc)