Create self-hosting guide

[matt-aitken]

The guide should make it easy to host the project yourself.

Trigger.dev involves several services.

Our current deployment system:

• The main web app and web socket services using Flight Control (see [flightcontrol.json].(https://github.com/triggerdotdev/trigger.dev/blob/bf57430b6663fa62fc4a395d3aeb05104eae0d1b/flightcontrol.json)
• The authentication service (which uses Nango) to fly.io.
• Apache Pulsar using StreamNative.

[matt-aitken]

Please note that there is a development guide if you want to run locally.

[kryptonianson]

Looking forward to this. Docker containers would be fantastic.

[cmolina]

Consider using Nix 🙏🏻

[jeanpfs]

Is this not going to happen anymore?

[ericallam]

@jeanpfs yes, this is definitely going to happen! We're just coordinating these guides (we plan on having a guide for as many platforms as possible) on our trigger.dev-docs repo