Quick cheatsheet:
AMD64/x86 (linux):
wget https://github.com/dashpay/platform/releases/download/v2.0.0/dashmate_2.0.0.bcbbad130-1_amd64.deb
sudo apt update
sudo apt install ./dashmate_2.0.0.bcbbad130-1_amd64.deb
dashmate stop --platform
dashmate update
dashmate start --platform
ARM64 (linux):
wget https://github.com/dashpay/platform/releases/download/v2.0.0/dashmate_2.0.0.bcbbad130-1_arm64.deb
sudo apt update
sudo apt install ./dashmate_2.0.0.bcbbad130-1_arm64.deb
dashmate stop --platform
dashmate update
dashmate start --platform