[hardwaresofton]

There are... a bunch of them. I write a little blog (soon to be directory site) about open source and at this point I groan a little bit when I see another one (wonderful problem to have of course):

https://awsmfoss.com/flagsmith

https://awsmfoss.com/unleash

https://awsmfoss.com/featbit

https://awsmfoss.com/flagr