Upstream titanoboa metamask signer to boa

[PatrickAlphaC]

vyperlang/titanoboa#413

Might make sense to do this from python code/python repl?

[s3bc40]

So, making the backend part as a general API accessible across all downstream tools that use Titanoboa?

If I understand, we want to add the Python module in Boa like the browser env integration in their repo: https://github.com/vyperlang/titanoboa/tree/master/boa/integrations

Python REPL could bring more interactivity if we managed to deliver it loaded with our MM module. I see the potential, just another challenge where I need to adapt.

If we consider this, I might need to improve the robustness of the feature by:

• adding integration tests for the MM signer (already in mind since the launch of the feature)
• considering Flask to benefit from clean API structure/code, test features OR stay on core python http.server?
• testing if we can use Python REPL to add more interactivity

That's what come to mind for now. Not a priority, but I'll keep that in mind!

[PatrickAlphaC]

@charles-cooper what do you think?

[charles-cooper]

Flask is overkill imo. The extension should be as simple as possible