[RFC] Should we host MUI X on the main repository?

[oliviertassinari]

The idea to host the X line product in the main repository is growing in me. While we are going in this direction for the pickers: mui/material-ui#19706, I would like to continue the reflection for X. It's not obvious.

Pros

• Better integration and coherence between the MIT and paid content: more code shared, more knowledge shared.
• Avoid doing back and forth between the source and the documentation. From what I understand, the workflow will be as follow: make the change in this repository, wait for the next release schedule, (1-week frequency?) once the code is released, go to the main repository, update the documentation, wait for the next release schedule (1-week frequency). Live.
• Share the same tooling, I have started to look at the tooling gap. I believe [core] Align the eslint configuration with the main repository #23 and [core] Align prettier tooling with main repository #24 are 5% of what's left to address. CircleCI, codesandbox-ci, bundle size tracking, test coverage, visual regression, Netlify deployment, cross-browser end to end tests (need to replace Jest with Mocha).
• Else?

Cons

• Less audience isolation. We risk paid content perverting and negatively influencing the MIT community.
• Slower CI, which is the price for better integration. We can mitigate it by spending $ on better machines ($0/month so far) and introducing parallelism.
• Else?

Can it scale?

Looking at larger projects, yes, it seems so

• https://github.com/tensorflow/tensorflow
• https://github.com/kubernetes/kubernetes
• https://github.com/microsoft/vscode
• https://github.com/flutter/flutter

Note that if bug tracking is a concern, we can very well manage the concern independently to where the source is hosted: fullcalendar/fullcalendar-workspace#558.

Prior-arts

• Ag-grid
  • https://github.com/ag-grid/ag-grid (MIT)
  • https://github.com/ag-grid/ag-grid-enterprise (Paid) But moved back to the main one
• Full calendar
  • https://github.com/fullcalendar/fullcalendar (MIT)
  • https://github.com/fullcalendar/fullcalendar-scheduler (Paid)
• Else?

cc @mui-org/core

[oliviertassinari]

We play it safe, two different repositories.