support for ARM64 package

what is needed to get a test build fro arm64 ubuntu ? We would like to have the client for development

[shiftkey]

No current plans, but there are some instructions for building from source currently - check out these PRs desktop#4198 desktop#4650 and this section of the setup guide: https://github.com/desktop/desktop/blob/258d0deacdfdf7b97ea1c08ca2bb9ce8d4f931d7/docs/contributing/setup.md#arm64-builds

[RussianNeuroMancer]

Currently there is one arm64 workstation, two arm64 laptops with preinstalled Linux, four arm64 laptops capable of running Linux, twelve Samsung DeX capable devices, several desktop-capable arm64 SBC (such as ODROID-N2, ROCKPRo64, RPi4, HiKey960/970, etc.).

No current plans

Still no change in plans?

[shiftkey]

It looks like the Desktop team is no longer distributing an ARM64 version of Git with the dugite-native package, so without an alternative way of invoking Git and the engineering work to incorporate it into our builds, this isn't going to happen.

desktop/dugite-native#315 has more context behind the change.