write haxe with

• syntax highlighting
• lsp completion
• debugging (including ui) (hashlink only)

to make it work

• build a haxe-language-server
• build a hashlink-debugger
• grep 'path/to/your' and replace with the binaries from those steps
• hardcode your hxml details (you saw this when you grepd)

you can buildd with :make and you can debug with f5

this is the best if not only way to write haxe and debug hashlink in neovim