Nerds and future billionaires rejoice: codes used on NASA’s rockets are now free and legal to download.

For the second year in a row, the National Aeronautics and Space Administration has released its public software catalogue, a list of over 1,000 selected programs and codes available for download via the agency’s website.

With only a few restrictions, the release allows US coders and programmers to peak under the hood of NASA programs that the agency doesn’t deem too sensitive to share.