The online community for MiSTer FPGA enthusiasts
https://misterfpga.org/
If there's enough interest, I'd happily adjust the VHD-files I'm making for AO486 so that they can run on PCXT as well. I never had a Tandy so I may need some help getting a test environment up for that.
For images under 2GB I don't think any adjustments are needed - I tested mine on both and they seem to work ok.
It doesn't matter if there is a lot of interest or not; just do it for yourself, as there are some pretty unique characteristics with the Tandy that make it fun to play with. Having 16 colours without an EGA Card is awesome, but I would recommend you read the core wiki on Git Hub. One key core-specific issue is memory management and in Tandy mode make sure that EMS is disabled as the included core memory manager was overwriting conventional memory under the Tandy BIOS. Feel free to pull apart the TDL build I did and use the autoexec and config.sys as a starting point, CheckIT is included in the UTILS so you can verify changes to memory management.
Akeley - lots of interest from me !!
has any tried writing this back to a real tandy? I recently picked up a Tandy 1000TL and wanted to see if this a viable shortcut
{update 06 Nov 2024}
Tried this images with picomem and it hard lock after initial load in and wipes all the picomem setting. I've tried opending the VHD on a PC but fails and says it is corrupt. So as a a forewarning to fold don't try this image with picomem on a real machines. I might try writing to a CF with XT-IDE but my confidence isn't high.