Use Reactor API to Integrate Adobe Data Collection with Bitbucket

My team is looking into the possibility of using the Reactor API in order to 1) edit rules and data elements via a code editor (i.e. VSCode) and 2) backup everything to bitbucket. The second objective seems doable using the reactor-downloader library, with the caveat that it'll show the latest revisions rather than live revisions. Given what we're trying to achieve I have a few questions:

1. Is there currently a process to create/update rules, rule components and data elements for an existing Adobe Data Collection property via a code editor such as VSCode? Ideally, we'd like to be able to utilize a system with git branches and PRs to merge new changes.
2. The reactor-downloader library seems to only work with a JWT token to authenticate the Reactor API. However, the JWT method is being deprecated next year. Is there a work around for this to allow an OAuth access token instead?
3. The reactor-synch library requires a settings file that has all of the integration and environment settings. Is there an example of this file and what is expected to be in it?

Thanks in advance!