Some things that will be definitely relevant in 20 years would be: - git - linux kernel/firmware Some things that may be relevant in 20 years: - chromium - Fir

Some things that will be definitely relevant in 20 years would be: - git - linux kernel/firmware Some things that may be relevant in 20 years: - chromium - Firefox - nginx - some apache software - android I just thought about programs i use on a day to day basis. These projects are all huge, but that is what makes them be relevant in 20 years.