If I find some more i’ll make a compilation, but thats it for now
https://youtu.be/aNhpT7Bw_8g
Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.