I once read an article praising the 1913 edition of the Webster’s dictionary and I have been using it ever since (in the form of GNU Collaborative International Dictionary of English). That with etymonline makes the reading experience quite pleasant.

Thing: :|

Thing, China: >:(

The project is fully open source; albeit the codebase is quite large.

Retroarch and tons of roms. Would set me up for quite a while.