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LSP is working but requires polish. Go to definition, completion suggestions, inlay type hints and symbol highlighting are all working (probably not as pretty as they should)

Tree-sitter is supported and used internally for a subset of languages for syntax highlighting (other languages use textmate grammars). What exactly do you mean by support for tree-sitter parsers?

I wasn't aware of Debug Adapter Protocol! I'll take a look at that.

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You may want to take a look at Lapce too https://lap.dev/lapce (a Rust-native graphical editor that seems to be aiming for rough feature parity with VsCode) for a better overall view of what seems to be missing still wrt. both LSP support and overall UX. For example, it does not seem that support for showing "Code Lenses" is included in Fresh, so there is e.g. no Run or Debug option when hovering the pointer or cursor on the program main function or the like; also I didn't find a way of bringing up LSP-sourced documentation on an identifier (this should probably be bound to F1, just like the old Turbo or Qbasic).

It's a great start of course, but even just documenting anything that's clearly still missing would be helpful.

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