Font Fallbacks not working and Not able to load custom font either

[TheMulhima]

Describe the bug
I'm trying to add Chinese font compatibility in my app but I'm not able to get it to work.
Initially there was a font problem and this was added which changed the default font and also add fall backs.
How it was done can be found here

https://github.com/TheMulhima/Scarab/blob/3821c180b9e838bc68e0cc8b288664e952098495/Scarab/Program.cs#L184-L213

However, if the user doesn't have the primary font installed, the app just crashes instead of trying a fall back font which does exist.

See TheMulhima/Lumafly#53

This is one of the issues I'm having with fonts

The other issue is I tried to add Noto Sans SC as a embedded font in my app (and set it as the primary font family) but whenever I open the app I get the error could not create glyph Typeface. I added the font as avalonia resource and in the configure fonts extension on app builder I added the font but it doesn't work. The code trying to add that is here
TheMulhima/Lumafly@ec4c6cd

Fixing either one of these issues would fix the underlying problem that is Chinese font isn't working. Thanks

Expected behavior

• Specifying fallback fonts would use the fallback fonts when primary font is not found.
• Embedding the primary font in the app similar to how Avalonia.Fonts.Inter does it should help resolve the couldn't create the Glyph Typeface error

Desktop (please complete the following information):

• OS: Windows 11
• Version 11.0.0.rc-2.2

[Gillibald]

Where do you reference fonts:Noto Sans SC?

[TheMulhima]

After the builder is created, I call this function if the current culture is Chinese. Which then sets the font family to this (whose primary font is noto sans SC) using this code

I hope that makes sense

Should I be using a different way to set default font?

[Gillibald]

FontFamily="fonts:Noto Sans SC#Noto Sans SC"

[TheMulhima]

I'm sorry I'm not sure where to put that. Should that be added as a replacement to this or put that here or put it in the embedded font collection Uri or somewhere else?

[TheMulhima]

Adding that like this worked https://github.com/TheMulhima/Scarab/blob/fc8069e443b283afbb0b1b8e9d4d9cf232cc72a7/Scarab/Program.cs#L26
Thank you