History of flow 6 changes

In crates/oh/src/main.rs, lines 1533–1632 on acb8d109e981553b233a60ad4df83f8f868e9ecb88214c56cd927d7f4944a1a4. 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 1533,1632:crates/oh/src/main.rs.