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<h1 style="margin-top: 0;">Start Technologies</h1>
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## What is this?
This repository is the **monorepo for all Start9 products**. Its flagship is **StartOS** — an open-source Linux distribution for running a personal server, handling discovery, installation, network configuration, data backup, dependency management, and health monitoring of self-hosted services.
Products live under `projects/` and reuse code from `shared-libs/`. The OS, CLI, registry, and tunnel binaries are thin wrappers over the Rust `start-core` library; StartWRT owns its router backend and reuses that library's networking and utility modules. All Angular apps build through one root workspace; the SDK and container runtime have separate Node builds.
| Directory | Product | What it is |
| -------------------------------- | ---------------- | --------------------------------------------------------------------------------------------------------- |
| `projects/start-os/` | StartOS | The server OS — `startbox`/`start-container` bins, web UI + setup wizard, container runtime, OS packaging |
| `projects/start-cli/` | start-cli | CLI for managing servers, registries, and packaging |
| `projects/start-registry/` | start-registry | Package registry API and asset server (`registrybox`) |
| `projects/start-tunnel/` | StartTunnel | VPN/forwarding server (`tunnelbox`) + its web UI |
| `projects/start-wrt/` | StartWRT | OpenWrt-based router OS (`startwrt` bin + embedded web UI), flashable image for the SpaceMiT K1 |
| `projects/start-sdk/` | Start SDK | `@start9labs/start-sdk` for building StartOS service packages |
| `projects/brochure-marketplace/` | Marketplace site | Public marketplace site (marketplace.start9.com) |
| `projects/start-docs/` | Docs site | The documentation website (docs.start9.com) |
| `shared-libs/crates/start-core/` | — | The entire Rust backend library shared by all bins |
| `shared-libs/ts-modules/` | — | Shared TypeScript modules (Angular libraries + non-Angular SDK core) |
| `shared-libs/crates/patch-db/` | — | Diff-based reactive state store (first-party crate) |
**Tech stack:** Rust backend (Tokio/Axum), Angular frontend (Taiga UI), Node.js container runtime with LXC, and a custom diff-based database ([Patch-DB](https://github.com/Start9Labs/start-technologies/tree/master/shared-libs/crates/patch-db)) for reactive state synchronization. Services run in isolated LXC containers, packaged as S9PKs — a signed, merkle-archived format supporting partial downloads and cryptographic verification.
See [ARCHITECTURE.md](ARCHITECTURE.md) for how the pieces fit together.
## What can you do with StartOS?
StartOS lets you self-host services that would otherwise depend on third-party cloud providers — giving you full ownership of your data and infrastructure. Browse available services on the [Start9 Marketplace](https://marketplace.start9.com/), including:
- **Bitcoin & Lightning** — full Bitcoin node, Lightning node, BTCPay Server, and other payment infrastructure
- **Communication** — Matrix, SimpleX, and other messaging platforms
- **Cloud Storage** — Nextcloud, Vaultwarden, and other productivity tools
Services are added by the community. If a service you want isn't available, you can [package it yourself](https://docs.start9.com/packaging/).
## Getting StartOS
### Buy a Start9 server
The easiest path. [Buy a server](https://store.start9.com) from Start9 and plug it in.
### Build your own
Follow the [install guide](https://docs.start9.com/start-os/installing-startos.html) to install StartOS on your own hardware.
### Build from source
```sh
git clone https://github.com/Start9Labs/start-technologies.git
cd start-technologies
```
See [AGENTS.md](AGENTS.md) for the shared toolchain and development workflow, and [projects/start-os/AGENTS.md](projects/start-os/AGENTS.md#contributor-workflow) to build a StartOS image.
## The rest of the monorepo
StartOS is the flagship, but it shares this repo with the rest of the Start9 stack:
- **[StartTunnel](projects/start-tunnel/)** — a self-hosted VPN / reverse-proxy server that gives a StartOS box a public address and clearnet port forwarding without relying on a third-party tunnel.
- **[StartWRT](projects/start-wrt/)** — an OpenWrt-based router OS for home self-hosting: per-profile subnets and WiFi, inbound/outbound VPN, DDNS, and secure remote access, shipped as a flashable image for the SpaceMiT K1.
- **[start-cli](projects/start-cli/)** — the command-line client for StartOS servers and registries, and the tool that builds and signs service packages (`.s9pk`).
- **[Start SDK](projects/start-sdk/)** — the `@start9labs/start-sdk` TypeScript SDK and packaging toolchain for wrapping any app into an installable StartOS service.
- **[start-registry](projects/start-registry/)** — the registry server that hosts and serves marketplaces of packaged services.
- **[Marketplace site](projects/brochure-marketplace/)** — the public marketplace at [marketplace.start9.com](https://marketplace.start9.com), built on the same UI components the OS uses.
- **[Docs site](projects/start-docs/)** — the documentation website at [docs.start9.com](https://docs.start9.com).
## Documentation
- [ARCHITECTURE.md](ARCHITECTURE.md) — how the monorepo fits together
- [AGENTS.md](AGENTS.md) — environment setup, build, test, and format workflow
- [SECURITY.md](SECURITY.md) — how to report a vulnerability, and what is in scope
## Contributing
There are multiple ways to contribute: work directly on a product in this repo, package a service for the marketplace, or help with documentation and guides. See [AGENTS.md](AGENTS.md) or visit [start9.com/contribute](https://start9.com/contribute/).
To report security issues, email [security@start9.com](mailto:security@start9.com). See [SECURITY.md](SECURITY.md) for what is in scope and what happens next.
## License
MIT — see [LICENSE](LICENSE). Copyright (c) 2023 Start9 Labs, Inc.
A short list of third-party files carry their own terms; [NOTICE.md](NOTICE.md)
names every one of them. Anything not listed there is MIT.
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