Apple Lisa is a desktop computer developed by Apple, released in1983. It was one of the first personal computers to offer a graphical user interface (GUI) in a machine aimed at individual business users. Because the high price, relatively low performance led to poor sales.

Al Kossow from Computer History Museum announced that Apple will share Lisa source code of operating system and applications and donate to them.

Here is what he said: 

Just wanted to let everyone know the sources to the OS and applications were recovered, I converted them to Unix end of line conventions and space for Pascal tabs after the files using Disk Image Chef, and they are with Apple for review. After that's done, the Computer History Museum will do a CHM blog post about the historical significance of the software and the code that is cleared for release by Apple will be made available in 2018. The only thing I saw that probably won't be able to be released is the American Heritage dictionary for the spell checker in LisaWrite.

Source: cnbeta