You need to host it yourself and it needs access to your Bitcoin Core / LND / tapd / nutshell services (not all, just what you have). Steps:

1. clone repo: git clone https://github.com/orangeshyguy21/orchard
2. cd orchard
3. cp .env.example .env
4. edit .env (if you don't know what to put, the UI will give you examples if you don't configure anything)
5. npm i
6. npm run start:server
7. (separate window) npm run start:client