So in the "mATX/Odd Sizes" page... Since I think the reason most people will care about that page is whether something fits in the NCase M1, could we add colors to the dimensions (columns F & G) to show if they are safe or not for the M1?
EDIT: For reference, 226mm or less in "length" is green. Anything higher is red as that's the hard limit. 173mm or less in Width is green (will work with normally mounted SFX unit). Anything Width 244mm or less is Yellow because it's possible to mount the SFX against the front of the case, but it's very tricky and you run into potential GPU clearance issues.
Like @ignsvn said, the reason I created that sheet was because there are a lot of cases that support an "odd" size mATX board like it many taobao cases and few others. Since there are a lot of variety in sizes in what motherboard manufacturers call "mATX", I decided to list them to make it easier for people to refer to them.
I didnt actually made it with NCase M1 in mind but it certainly can fit some mATX boards even though its not officially supported. I saw your message in Discord that someone managed to put an Asus Maximus VI Gene in there with the front SFX PSU? That is really wild by the way.
What I can do is add a note in NCase M1 that it can support up to 226x244mm mATX boards with front mounted PSU but not recommended as it is not officially supported and can be tricky.