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1. hecatehq/hecate hecatehq/hecate Public

   Local-first AI agentic runtime console for cloud/local models and supervised coding-agent sessions.

   Go 17 1

2. cynic cynic Public

   A strict-only ECMAScript engine, written from scratch. Cynic targets non-browser hosts — edge runtimes, Workers, server-side JS.

   Zig 14

3. xyzzylabs/tc39-mcp xyzzylabs/tc39-mcp Public

   Read-only MCP server for the TC39 ECMAScript specs (ECMA-262 + ECMA-402). SHA-pinned clauses, AOID-aware search, cross-spec references, edition diffs, auto-refreshing. Runs as stdio (npx) or hosted…

   TypeScript

4. WebKit/WebKit WebKit/WebKit Public

   Home of the WebKit project, the browser engine used by Safari, Mail, App Store and many other applications on macOS, iOS and Linux.

   JavaScript 9.9k 2k

5. tc39/ecma262 tc39/ecma262 Public

   Status, process, and documents for ECMA-262

   HTML 15.6k 1.4k

6. WebAssembly/proposals WebAssembly/proposals Public

   Tracking WebAssembly proposals

   1.1k 70