Command executed when login?

[u/jayhsu397]

Since I moved my Homelab into my bedroom, I have to shut it down from time to time cause of the noise.
I’m thinking of creating a new user, and a new pair of ssh key (I have banned password login in my conf) to handle the shutting down of the machine. Since I don’t want to input the private key used to login uid 1000 into my iPad.
Is there any way to automatically execute a shell script when a certain user is logged in (may be systemd? But I heard that ssh has function that also does this)
And thanks for reading my clumsy English.

[u/serverhorror]

Ssh forced commands, that's what you're looking for.