There are two scripts included at the time this README was written, and they both support flamegraph generation on Ubuntu. The first script installs the required dependencies:
scripts/ubuntu-install-perf.sh
The second script will run Alacritty while recording call stacks. After the Alacritty process exits, a flamegraph will be generated and its URI printed.
scripts/create-flamegraph.sh
NOTE: The create-flamegraph.sh script is intended to be run from the alacritty project root.