Hi, cool app!
Noticed a few things:

1. The app manifest doesn't seem to declare Cider's DPI awareness as "permonitor" or "permonitorv2", so when I move the Cider window from a monitor with 100% scaling to a monitor with 200% scaling, it is blurry. I can manually override this in the exe properties under the Compatibility tab, with caveats:
2. When moving to a high-DPI monitor, the window needs to be resized before it scales up correctly.
3. When I move the window back to a low-DPI monitor, the window size doesn't scale down (e.g., a 2000x1800px window on a 4K monitor is still 2000x1800 *physical* pixels on a 2K monitor, which is way too large - I expect the window to be in logical pixels, so that it is half the size based on the Windows scaling).