git clone --recursive https://github.com/flathub/com.stepmania.StepMania  /tmp/com.stepmania.StepMania
docker run -ti --privileged --name=buildflatpackstepmania -v /tmp/com.stepmania.StepMania:/flat ubuntu:18.04
cd /flat/
apt-get update && apt-get install -y git build-essential flatpak-builder ostree fuse elfutils ca-certificates --no-install-recommends
mkdir /build
cd /build
flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
flatpak install flathub org.gnome.Sdk//3.36
flatpak install flathub org.gnome.Platform//3.36
export FLATPAK_GL_DRIVERS=dummy
flatpak-builder --force-clean --disable-rofiles-fuse /build com.stepmania.StepMania.json

Too remove a permission one can do:

flatpak run --unshare=network org.something.App

Also https://zenius-i-vanisher.com

Also also https://gist.github.com/nico-abram/8c886faf3bb53c7715e77c7a23c04132

"Nightmare is an intro to binary exploitation / reverse engineering course based around ctf challenges. I call it that because it's a lot of people's nightmare to get hit by weaponized 0 days, which these skills directly translate into doing that type of work"

Help choose background and text color