I didn't look for any resources beyond the LSP spec and VS Code documentation, so I can't offer any recommendations here I'm afraid. That said, looking back I'm

I didn't look for any resources beyond the LSP spec and VS Code documentation, so I can't offer any recommendations here I'm afraid. That said, looking back I'm pretty happy with the choice of using VS Code as the initial editor to get things up and running. While not perfect (e.g. VS Code will silently ignore your JSON message if you miss a closing brace), the docs are pretty good and it offers a reasonable level of debugging functionality (such as an output window where you can see messages sent to the language server). The Muon VS Code extension [1] is pretty minimal in itself, and it's MIT licensed so feel free fork and use it as a starting point. [1] https://github.com/nickmqb/vscode-muon https://github.com/nickmqb/vscode-muon