We've spent the last 24 months duct-taping memory systems together, chasing persistence. Reversing them with REA and Ghidra showed what most of them do by default: cloud fallbacks, open ports, and tracing that records your full prompts. Your data leaves the machine without you choosing it. We're not here to bash anyone—you know who you are. So we built the one we wanted: zigmem. Written in Zig by a collection of my finest AI agents (with a line written by my own hands for good measure, like the good old days). 💾 One Portable File: Your agent's lifetime of memory in a single database. Copy it to a thumb drive, move it to a new machine, or open it in ten years. If a model provider vanishes tomorrow, your memory survives. ⏰ Bitemporal Honesty: Knows the difference between "what was true last month" and "what is true now." Nothing is silently deleted—only superseded, with an audit row. Every stale line served is annotated against a current-facts ledger. 🎯 Atomic Retrieval: Short, timestamped facts beat long passages 5–8x per character. Pull candidates wide, rerank tight, inject the minimum. Built so a model says "I don't have that" instead of making it up. 🏠 Multi-Seat Scoping: Built for households, not just single users. Medical facts stay firewalled to their owner's seat. 🌙 The Idle Pass: When the agent goes quiet, a background pass extracts facts, folds them into scenes and a per-person persona, and leaves an auditable receipt for every change. 1 binary. 1 file. 1 endpoint of your choice. Zero telemetry, zero cloud fallbacks. Benchmark receipts in the repo. Apache 2.0. Your agent's memory should outlive the company that made the model. Now it can. Point your agent at the repo. Our agents wrote a jumpstart prompt to save you time. Special thanks to @ashxhart and @MiaAI_lab for always inspiring us. Also @plotarmordev @petruspennanen @u1tra_instinct @Tech2Wild @elder_plinius Lately they keep us pushing..really appreciate their contributions to the open source community.