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milonpatowary / mongodb-aggregation-cookbook

16 runnable, tested MongoDB aggregation recipes — each with the index that makes it fast and the anti-pattern it replaces.

recipes performance database mongodb nosql cookbook aggregation aggregation-pipeline devmilon

Updated Aug 7, 2026
JavaScript

milonpatowary / double-entry-ledger

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A double-entry ledger for Node and MongoDB. Balanced by construction, append-only, idempotent, and reconcilable. Zero dependencies.

nodejs money accounting payments audit ledger fintech bookkeeping double-entry devmilon

Updated Aug 8, 2026
JavaScript

milonpatowary / express-idempotency

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Stripe-style idempotency keys for Express. Safe retries for POST/PATCH/PUT/DELETE, correct under concurrency. Redis, MongoDB and in-memory stores. Zero dependencies.

nodejs api redis middleware express mongodb expressjs retry idempotency idempotency-key devmilon

Updated Aug 8, 2026
JavaScript

milonpatowary / license-guard

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Self-hosted licensing and deployment tracing for private Node.js code. Encrypted core modules, Ed25519 licence tokens, seat limits and sharing detection, on one Cloudflare Worker. Fail-open by design. Zero dependencies.

nodejs licensing cryptography telemetry self-hosted ed25519 fingerprinting license-server code-protection cloudflare-workers anti-piracy licensekey devmilon

Updated Aug 10, 2026
JavaScript

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