It feels like I'm missing the entire story here. My node and alby are nicely connected, what now?

No combination of free or paid relays, nsec and npub works, Amethyst keeps crashing when I try to zap and I'm thinking is it buggy or am I doing this wrong?

"NOSTR_PRIVKEY: the private key of this service."

What private key is it referring to? My muppet accounts nsec? Do I have to switch my albys main account to the muppet account, also losing/anonymizing my alby address?

"CLIENT_NOSTR_PUBKEY = that's my main accounts npub, yes? Authorizing the second account to execute?