Like many text editors, you can open a directory and it'll show a file tree in the sidebar.

Cursor does currently allow users to BYO OpenAI token. Given Cursor won't have access to OpenAI models for prompt engineering/evals though, there's definitely a question of whether they'd allow picking any new OpenAI models, assuming the BYOK option continues to exist at all.

Email to customers now "We’re speaking with the OpenAI team to resolve this, and we will share more in the coming weeks around continuity of access to OpenAI models. We’ll continue to offer ways to access all models in Cursor.

Specifying sp=reject in a DMARC policy would have a similar effect right?

The wildcard DNS SPF record is useful for mail receivers who won’t check DMARC, but will check SPF records. Also, the DMARC sp= setting defaults to the same as the p= setting (unless the DMARC record is itselt on a subdomain, in which case the sp= setting is ignored). So if you already have a strict p=reject setting, the sp= setting is useless.

That somewhat sounds like the sort of thing git imerge does.