Read every line. Export your data. Run it yourself.

GoodStrata is released under the Apache-2.0 licence: permissive, commercial-friendly, and applied to the entire codebase, not an "open core" shell wrapped around a paid engine you can never see. The finance agent, the arrears ladder, the levy apportionment, the decision gates, the event log, the whole web app: it's all on GitHub, and you can read it, fork it, run it, or audit the money math yourself. This matters most for the part that handles your building's cash. Levy apportionment, penalty interest and payment reconciliation are deterministic, tested functions. Because the source is open, "the LLM never computes money" is a claim you can go and verify line by line, not one you have to take on faith.

The entire platform runs on PostgreSQL and a single Node process. One command, docker compose --profile app up --build, brings up a database and one container, and you have a working owners corporation. No Kafka, no Redis cluster, no queue service, no managed-cloud dependency to sign up for; the append-only event bus is just Postgres with LISTEN/NOTIFY. And every paid integration ships with an offline default, so you can run a complete building with zero external accounts and zero recurring bills: email falls back to a local sink (or your own SMTP server), payments to a manual rail, hosted AI to a local model. Nothing about the free path is crippled: it's the same code the managed service runs.

GoodStrata runs local LLMs through Ollama. Set AI_PROVIDER=local, point it at a model like Qwen3-30B-A3B, and every agent (finance, maintenance, meetings) runs on your own machine with no API key and nothing sent over the wire. We built for the most paranoid deployment first and then proved it: a full month of a 12-lot building, arrears chased to the cent, a roof leak triaged and dispatched, minutes drafted, all on one MacBook with no cloud AI at all. For an owners corporation that isn't a nicety: owner names, ledgers, arrears histories and disputes are exactly the data you don't want sitting on someone else's server. Self-host, and it simply doesn't.

Every platform promises no lock-in. Open source is what turns the promise into a property you can actually check, three ways. You can read the code, so there's nowhere to hide a trap. You can export your data: it's your Postgres, holding your ledger, your append-only event log and your documents in open formats you can take anywhere. And you can run it yourself, because the licence says you can, forever. If GoodStrata ever changed its terms, raised a price, or shut down tomorrow, a self-hosted building keeps operating on the last commit without missing a levy. That's the difference between being told you're not locked in and being able to prove it.

Self-host is for the privacy-conscious owners corporation that wants its records on hardware it controls, for the technical owner who would rather run one process than pay a manager, and, honestly, for everyone else as well, because it's the receipt. The managed service runs this same open code, so self-host being real is the proof that the hosted version has nothing to hide. But most buildings don't want to run a server, and they shouldn't have to. If that's you, skip the terminal entirely.

The hosted service is the same open code, run for you, and it's free for owners corporations. It takes nothing from your levies, because your levies never pass through it: owners pay the owners corporation's own bank account, exactly as they do today. No hidden insurance commission, and never a kickback for the contractors our agents surface; the committee always chooses on the evidence attached, and every dollar sits on the audit log. And because it's the same open platform underneath, the exit is built in: if you ever want your data on your own hardware, export it and self-host. The door is open by design.