kirb
[Feature request] ARM32/ARM64 support
That way you can use Legacy Update on both ARM32 (Jailbroken Windows RT) and ARM64 (Windows 10/11) devices natively.
Kirb and I both will need ARM devices in order to port LU over. In the case of Arm32 at least, we will need to port NSIS over and make a custom toolchain for MinGW. It'll happen at some point, but it probably won't happen for a little while.
ARM64 would be a bit easier since we can get away with using a Raspberry Pi 4 (I have one of those), that's something we can probably look into. That's probably still going to be a NSIS port and a MinGW toolchain though since we're trying to get away from having to use Visual Studio for a variety of reasons, not the least of which (in my case) being that the tools necessary to target XP are deprecated in Visual Studio 2022.
Kirb and I both will need ARM devices in order to port LU over. In the case of Arm32 at least, we will need to port NSIS over and make a custom toolchain for MinGW. It'll happen at some point, but it probably won't happen for a little while.
ARM64 would be a bit easier since we can get away with using a Raspberry Pi 4 (I have one of those), that's something we can probably look into. That's probably still going to be a NSIS port and a MinGW toolchain though since we're trying to get away from having to use Visual Studio for a variety of reasons, not the least of which (in my case) being that the tools necessary to target XP are deprecated in Visual Studio 2022.
~~You could use Visual Studio 2017 which I believe supports both Windows XP and ARM64 (it definitely supports ARM32)~~
~~Edit: Now that I think about it, I don't think VS2017 supports Windows 2000, so maybe have a separate build for 2000-XP and Vista+? That way maybe NT 4 and 9x support could also be added.~~
Edit 2: Please ignore this, I didn't see the part where you mentioned that you didn't want want to use Visual Studio when I wrote this comment
~~Also, ARM64 Windows support ARM32 apps just fine (at least before the latest Canary builds), although ARM32 Internet Explorer isn't included, which I assume is needed for Legacy Update.~~
However, you can use this fork of QEMU to emulate ARM32 Windows (both RT 8.1 and this leaked ARM32 Windows 10 build) which does have ARM32 Internet Explorer, although it is a bit slow due to emulation overhead.
And although I haven't tested this, the QEMU fork should theoretically also support KVM if you manually compile it for ARM64 Linux hosts (by default it is compiled for x86-64 Windows hosts) so that it works quite a bit faster. This however requires the host CPU to support ARM32 instructions (but it should work just fine with a Raspberry Pi 4)
Btw a MiniGW toolchain already exists for both ARM32 and ARM64: https://xdaforums.com/t/mingw-w64-toolchain-to-recompile-apps-for-arm-in-a-ready-to-use-form.3775456/post-88013711