Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
This PR restores the use of builtins (e.g., initializer, elaborators, and macros) for DSL features and the use of the Lake plugin in the server. The motivation is to avoid elaboration breakages in Lake when core types need changing (e.g., `Environment`). This reverts #7399 and partially reverts #7608. The use of the plugin is more narrow -- it is now just used for elaboration of Lake configuration files in the server. This should hopefully avoid the reappearance of #7388. |
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