Hey everyone! 
We recently open-sourced ROS 2 GUI Installer, a tool we developed at RUNTIME Robotics to simplify ROS 2 installation, especially for absolute beginners.
It provides a simple GUI to install ROS 2, Gazebo, Nav2, MoveIt 2, and other commonly used packages.
One feature I find particularly useful is Workshop Profiles. You can create a YAML profile with the packages and configurations needed for a workshop and share it with participants so they can easily replicate the setup on their machines.
It currently supports ROS 2 Humble, Jazzy, and Lyrical.
GitHub - runtimerobotics/ros2_gui_installer: Beginner-friendly GTK4 GUI installer for ROS 2 (Humble, Jazzy, Lyrical): base, simulation, mobile robot, Nav2, arm, MoveIt 2 · GitHub
Hope this is useful to the community! Would love to hear your feedback and suggestions. 
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The Workshop Profiles idea seems like the most practical part of this, since getting everyone in a room onto the same package set is usually where a lot of time disappears. I am curious how much the profiles lock down beyond package selection, for example whether they can pin specific versions or leave room for local variations. The three-distro support for Humble, Jazzy, and Lyrical also feels considered rather than just chasing the newest release. Denver has a decent meetup scene, and something like this could make introductory sessions less about troubleshooting installs.
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