On Fri, Sep 16, 2016 at 10:52:21AM +0200, Paul van der Vlis wrote:
> An interesting question: If a website publishes the source code of the
> software they are using, how do you know they are not using something
> what's modified?
You don't and there is no practical way for you to receive proof.
Dear friends of Free Software!
We have just started to sell some T-shirt remnants for a reduced price
of 10 Euro. So if you are interested in making a bargain while at the
same time helping us to tidy up our merchandise stock, just have a look at
https://fsfe.org/order/order.html
and watch out