daemon

Description
Spotifyd will randomly crash on my machine. Sometimes during playback, sometimes while paused.
After running spotifyd --no-daemon, I managed to catch the error message:

Couldn't fetch metadata from spotify: Err(RateLimited(Some(1)))
Couldn't fetch metadata from spotify: Err(RateLimited(Some(1)))
Caught panic with message: called `Result::unwrap()` on an `Err` value: r

The USERLEN ISUPPORT token lets users know how long the ident can be. Do we wanna expose this?

Not sure if this is the correct way to do it, but I wanted to save a cache script I could easily run.

"cache": {
      "desc": "Cache versions and update lock file",
      "cmd": "deno cache server.ts --lock-write",
      "lock": "./lock.json"
}

The result however when running denon cache is an endless loop instead of just executing it once, looks like this:

![Skärmavbild

We avoid using cgo anywhere in the codebase since it causes problems with cross compilation. However, cgo would be advantageous in some cases (e.g. can use certain optimized libraries, can use libsecp256k1 bindings)

Investigate the viability of using xgo to do this. Test it on linux/osx/windows.

• https://github.com/karalabe/xgo
• https://github.com/ethereum/go-ethereum/wiki/Cross-compili