Show HN: SFX – A language where 0.1 and 0.2 = 0.3 and Context is first-class https://ift.tt/6azkUtH

Show HN: SFX – A language where 0.1 and 0.2 = 0.3 and Context is first-class I've spent the last few weeks building SFX in Rust. It's a programming language experiment focused on context-oriented programming with some unusual design choices. Reality check first: Solo project, 53 commits 1 GitHub star xD Zero users besides me No production usage Documentation is aspirational Many stdlib modules are minimal stubs What actually works: Basic interpreter (tree-walker) Arbitrary precision decimals (0.1 + 0.2 = 0.3) 1-based indexing (controversial, I know) Context/Situation system (the main idea) Some file I/O and basic networking JIT hooks exist but optimization is minimal The Context idea (asking for feedback on this): Instead of checking if (user.isAdmin) everywhere, you define Situation: AdminMode that overrides methods: Concept: User To GetPermissions: Return "read" Situation: AdminMode Adjust User: To GetPermissions: Return "admin,write,delete" Story: Create User Called Bob Switch on AdminMode Print Bob.GetPermissions # Now returns "admin,write,delete" Objects change behavior based on active situations without mutating state. Is this useful or just overengineered? What's NOT ready: Performance is terrible (haven't optimized anything) Standard lib is mostly TODOs AI features are vaporware REPL doesn't exist No tooling (LSP, debugger, etc.) Tests exist but coverage is poor My questions: Is context-oriented programming solving a real problem or creating busywork? Should I focus on making it fast OR making the stdlib useful? Is 1-based indexing a dealbreaker for you? Would arbitrary precision by default bother you for a general-purpose language? I'm not trying to replace anything. This is a learning project that got out of hand. Repo: https://ift.tt/9saq7iK Pages: https://roriau0422.github.io/sfex-lang/ Honest feedback wanted - including "this is pointless, stop wasting time." https://ift.tt/9saq7iK December 7, 2025 at 12:13AM

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