[kazinator]

The thing is, that FOSS cannot have an EULA. Free, open source software is accompanied by licenses which pertain only to the redistribution of the source code, not stipulating any restrictions on the use of the program.

One notable deviation from this is the GNU Affero license ("AGPL") which requires someone operating the AGPLed service program, if the program is accessible to network visitors and uses modified code, to offer the modified source code to the visitors. This is quite controversial; not everyone (myself included) agrees that the AGPL is a free software license like the GPL.