Comment by nerdypepper

self-hosting the appview was a bit trickier back then, but we have worked towards making that trivial. it now runs entirely in-memory, and is completely stateless (rebuilds the state of the network from scratch each time).

https://tangled.org/docs/self-hosting/indexer/

we have also stabilized lexicons, so if you are a selfhoster, you can expect to not require a breaking upgrade!