This isn't a full release yet (source and stuff), but for now I thought somebody might find it useful.
Oculus Room Details is a simple command line tool that generates two output files:
room.svg - This is an svg drawing of your room configuration, showing sensor placement and heights, camera frustums, guardian boundary, play area rectangle and centre location. It also labels distances between sensors.
chaperone_info.vrchap - This is the SteamVR config file for chaperone boundaries.
If you don't want to set up chaperone for SteamVR games (some require explicit room scale setup in SteamVR rather than falling back on Oculus Guardian), you can use this tool to generate a chaperone config file from the current Oculus settings. Just copy the generated chaperone_info.vrchap to C:\Program Files (x86)\Steam\config and start SteamVR. It should now be using the same boundary as Guardian.
Note: Guardian boundaries have way more points than a chaperone boundary, it may look a little messy in SteanVR.
The same oculus guardian setup exported to steamvr:https://www.dropbox.com/s/cr2lhn34v80n1jy/OculusRoomDetails_V0_2.7z?dl=0