[jianshen]

I see an old Sudoku game I wrote in here and it brings back some great memories but now I'm also scared to look at my old code now. O_O

Curious how did you back all this up?

[codepoet80]

I think this mostly answers your question: https://news.ycombinator.com/item?id=31611208

The other part is the community. People who had backed up their libraries. Devices found on eBay that still had a bunch of apps on them. People who had hoarded IPKs and had them saved on hard drives and were willing to share. That and lots of scraping Google by filename...