A language that compiles to Go, adding ergonomic and type safety features that Go lacks. Soppo uses Go syntax wherever possible - if you know Go, you know most of Soppo.

Take the tour · Visit the playground · See the website

Soppo is not production ready.

• Enums & pattern matching: Tagged unions with exhaustive matching
• Nil safety: Compile-time nil checks
• Error handling: ? propagation with custom handling blocks
• Rust-inspired diagnostics: Helpful compiler error messages
• Go interop: Use any Go library directly
• Batteries included: LSP, formatter, test runner with doctests

See docs/design.md for language design.

Install via SOPMOD, the version manager for Soppo, written in Soppo:

curl -fsSL https://soppolang.dev/install.sh | sh
sopmod install sop latest

Or install manually with Cargo: cargo install soppo

BSD 3-Clause. See LICENSE.