sfn
Why Sailfin
Downloads
Docs
Getting StartedLearnLanguage SpecEffect SystemStandard LibraryCLI ReferenceSFEPs
SFEPs
Packages
Blog
Community
Get Started
Why Sailfin
Downloads
Docs
Getting StartedLearnLanguage SpecEffect SystemStandard LibraryCLI ReferenceSFEPs
SFEPs
Packages
Blog
Community
Get Started

Blog

News, design decisions, and release notes from the Sailfin project.

A 14,000-Line Python Script Was Holding My Compiler Together

July 4, 2026by Michael Curtis

A year of building a self-hosting programming language by directing agents — and what it actually took.

The Capability Seal

June 26, 2026by The Sailfin Team

Sailfin's 1.0 thesis: type-proven and runtime-enforced capabilities, at native speed, on a runtime Sailfin owns.

Welcome to sailfin.dev

March 29, 2026by The Sailfin Team

Introducing the official Sailfin website and documentation.

Sailfinsfn

A systems language with compile-time capability enforcement.

Why Sailfin

  • Use Cases
  • Case Studies
  • Security

Learn

  • Getting Started
  • Downloads
  • Tour of Sailfin
  • Tutorials
  • Effective Sailfin

Reference

  • Language Spec
  • Standard Library
  • CLI Reference
  • Grammar (EBNF)

Community

  • GitHub
  • Blog
  • Contributing
  • Roadmap

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