Also note, that there is DD-WRT, which is a similar, but different project. Some routers might be supported by one, but not the other. I have a Netgear Nighthawk, for example, which is not supported by OpenWRT, but by DD-WRT.
I gave up on DD-WRT years ago when they started obfuscating parts of the WebUI to not have to comply with FOSS requirements (from foggy memory), moved to OpenWRT and never looked back. Trying to turn into a proprietary product something that was built by the community? Yeah no.
I once asked the main dev how to generate images for Buffalo routers, since I wanted to build from source. That particular component was not available and only he could build an image capable of being uploaded through the stock admin interface.
It wasn't the end of the world since a standard openwrt image could be loaded over tftp, but it was annoying that it was impossible to recreate the images available for download.
