History of project 3 changes

In crates/oh/src/main.rs, lines 1312–1426 on close-proposal-140. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 1312,1426:crates/oh/src/main.rs.