See the website: https://scalameta.org/metals/

See the contributing guide: https://scalameta.org/metals/docs/contributors/getting-started.html

The current maintainers (people who can merge pull requests) are:

• Adrien Piquerez - @adpi2
• Alexey Alekhin - @laughedelic
• Chris Kipp - @ckipp01
• Gabriele Petronella - @gabro
• Johan Mudsam - @mudsam
• Krzysztof Bochenek - @kpbochenek
• Jorge Vicente Cantero - @jvican
• Marek Żarnowski - @marek1840
• Ólafur Páll Geirsson - @olafurpg
• Shane Delmore - @ShaneDelmore
• Tomasz Godzik - @tgodzik
• Vadim Chelyshov- @dos65

Huge thanks to @dragos for his work on a Scala implementation of the LSP (see: https://github.com/dragos/dragos-vscode-scala). This project helped us get quickly started with LSP. Since then, we have refactored the project's original sources to the point where only a few simple case classes remain.

• IntelliJ IDEA: the most widely used IDE for Scala using a re-implementation of the Scala typechecker.

Metals = Meta (from Scalameta) + LS (from Language Server)