I saw lot of folks in college switch to Linux, especially Ubuntu back in the day. It was considered synonymous with coding here. There was a time I could recognize that Ubuntu’s Unity DE from anywhere before it was killed(and resurrected again recently).
Truman never wanted that. He flew around knowing that his nukes gave him an advantage over the USSR. From this paper, it is clear that Truman wanted to maintain an atomic monopoly and as for Joint Chiefs of Staff, they didn’t want to share the nuclear secrets with any organization including the UN.