Quick how-to on building System76's power management on Elementary OS 6.1

build_system76-power_on_Elementary_6_1.txt

# (assumes a standard install of Elementary OS 6.1)
# (following steps are cleaned-up and condensed from 100% trail and error, but easily figured out based on compile outputs)

# build
apt-get install -y git cargo libdbus-1-dev pkg-config libusb-1.0-0-dev
mkdir ~/git_repos
cd ~/git_repos
git clone https://github.com/pop-os/system76-power.git
cd ~/git_repos/system76-power
make

# install
sudo make install
sudo systemctl enable --now system76-power.service 

# validation
sudo system76-power profile
sudo system76-power profile battery