This is a small application that sends a machines IP addresses to your discord webhook when it boots up. I use it to keep track on my raspberry Pis. They get new IP addresses every once in a while, and I hate having to go to my modem homepage or connect a keyboard and monitor just to figure out the IP so I can remote into them anyway. Now you can just restart them and it'll send you the IP.
This requires rust nightly. I wrote it a long time ago. I'll try to port it to stable 2021 soon.
Install with cargo
$ cargo install wheres_my_pi
Set up a discord webhook and put it in ~/.wheres_my_pi. To set up a webhook, go to the discord server you're using and click the little cog next to the channel you want things sent to. There should be an "integrations" tab. Follow the instructions from there.
I would recommend making a channel just for this so you don't get spammed.
After the webhook is in ~/.wheres_my_pi, run it manually like this:
$ wheres_my_piPut the command to run this program in /etc/rc.local to have it run on system startup.