@mischievoustomato i literally work for an open source company. you don't need to lock down most of your source code to profit. what we do is support and develop / fix bugs for corpos that use your stuff and also sell the product with support and so on to end users. while the packaging for the end user product is proprietary, the actual engine (wine) and everything needed to make it work is open source. and yea we work with valve.

it's not necessary to put your code behind a paywall