A compact and memorable brand name with no established meaning or connotations.
The name "cmrr" has only four characters and only one syllable. One-syllable names are exceptionally rare and exceptionally valuable. Established brands using one syllable names include Dell, Square and Box.
Cmrr.com is a dot-com domain. Dot com domains are the most prestigious domain extension in the world, famously used by websites like google.com. Owning a dot-com says that you own the word "cmrr" online.