some stuff i've made
from systems-heavy builds to backend, cloud, and devops work.
Engramsystems · ai infra · backendA distributed memory backend for LLM agents: short-term messages, long-term vector search, pinned facts, auto-extracted knowledge graphs, and cross-session shared memory, all replicated across a Raft cluster.Raft-replicated cluster with LanceDB ANN searchShadow-Indexsystems · backend · blockchain · databaseReads and stores Ethereum's live activity the moment it happens, so apps can search it instantly.71k+ tx/sec throughputarbxsystems · backend · blockchainA bot that spots price gaps between crypto exchanges and trades them automatically for profit, using borrowed money it pays back in the same instant.17ns AMM calculation, 467us full market scanMempool-Snipersystems · backend · blockchainWatches Ethereum's queue of pending transactions and flags interesting ones in real time.<500ms Detection Latencyrusty-redissystems · backend · databaseA from-scratch clone of Redis, a super-fast in-memory store apps use as a cache.~1.4M+ ops/sec (Benchmarked)Aethersystems · database · backendA database spread across many machines that stays correct and online even if some of them fail.Zero-downtime snapshots via VACUUM INTODistributed Task Schedulersystems · backend · cloud · devopsRuns scheduled jobs reliably across many servers, splitting the work and surviving failures.Leader-elected multi-node schedulingWebhook Delivery Servicebackend · cloud · devopsReliably notifies other apps when something happens, with retries and tamper-proof signatures.Per-subscriber retries with HMAC signingJob Queue & Worker Systembackend · cloud · devopsRuns background jobs in priority order with retries and a live dashboard to watch them.Priority lanes + DLQ + live dashboardRate Limiter as a Servicebackend · cloud · devopsCaps how often each user can hit an API, to stop abuse and overload.Atomic Lua rate limiting in Redis