Why?
Why? Satisfactory and Docker.
Disclaimer
AI helped in this initiative.
Steps
df -hTgives my disk usage (and filesystem type)- Use Proxmox GUI
- Shutdown VM
- Click HDD, then choose “Resize Disk”
- Boot up brother
- And then (I use ext4):
lsblk
sudo nix-shell -p cloud-utils
growpart /dev/sda 1
lsblk
resize2fs /dev/sda
I updated my server template too for future recreations:

Aside
I noticed my hardware-configuration.nix was gone from my git repo. Not sure when/how that happened. This brought it back:
nixos-generate-config --show-hardware-config > hardware-configuration.nix
Also, somehow it knew about my mapped folder that I pass in from Proxmox. I didn’t research how it knew, but glad it worked.
Aside Two
I wanted to see disk usage in Proxmox. I saw there was: https://pve.proxmox.com/wiki/Qemu-guest-agent.
This guy from 2020 seemingly had it figured out to add it to NixOS: https://discourse.nixos.org/t/adding-qemu-guest-agent-to-a-nixos-vm/5931/2
services.qemuGuest.enable = true;
Nothing changed in Proxmox. I don’t care why right now.