Developer Tools●●Solid
Knitting – shared-memory function calls for JavaScript workers
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Big BrainNiche Gem
mimiMonads
102mo ago
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GitHub Repository
A drop-in coordination wrapper for WebWorkers that keeps exactly one Worker alive across tabs using Web Locks.
8 starsTypeScript
Access OPFS from multiple tabs using a fake Shared Worker
by ch_sm·May 1, 2026·2 points·1 comment
AI Analysis
●●SolidBig BrainWizardry
Enables multi-tab OPFS access by electing a leader tab to own the synchronous worker.
Strengths
- •Solves the specific SharedWorker limitation regarding FileSystemSyncAccessHandle.
- •Implements automatic leader election and MessagePort relaying for followers.
- •Drop-in wrapper preserves standard postMessage interface for existing code.
Weaknesses
- •Follower tabs incur slight latency due to message relaying through the leader.
- •Niche utility limited to developers specifically needing multi-tab OPFS writes.
Category
Target Audience
Frontend developers building offline-first apps with SQLite/WASM
Similar To
wa-sqlite · idb · localforage
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