But of course:
https://www.neutrik.com/en/product/ne8fdp
19" D panels are like £10 off eBay, stick in a box, rack whatever.
I got a few guitar pedal boxes and D-hole punch but it took a while so I went back to 19" panels.
You can even get 1/2 width rack stuff which is great for location recording I find, built boxes with Battery phantom (I'm that snobbish) Ethercon stuff and Analogue for the Mics to plug in.
Should have done that years ago LOL.