How do you other contributors go about setting up a development environment for this project?

[LEMUSADR000]

I went through the README file for the protos directory and ran that in order to generate my proto files. I also ran the build_runner command in order to generate my *.g.dart files, now my only question is how do I actually open up the different packages within the main package in order to develop on iOS/Android?

For Android I was getting issues with the gradle version being lower than the minimum supported. Is it fine if we just upgrade I to meet the minimum grade version we have locally?
Once I get past that issue I see problems with android not being enabled but being required since this project uses AndroidX dependencies. Do you guys just manually enable this or is something wrong with my build environment?
If I manually enable androidX and attempt to build my project I get an 'unresolved reference: flutter'. The amount of issues I have locally makes me think that more likely my local setup is incompatible with what you guys are using. Is there any guide for getting set up for this?

For iOS, the files in the the project are just Swift files, with no project file to open this in XCode. Should I be generating an Xcode project for this myself, or do you guys just edit the files and then test to see if the changes worked on the example project?