Thank you for taking over WTK project and bringing updates.
But, Silent Installers + SFX doesn't work on windows 10 v1903. I tried integrating same apps on both editions and still they don't install . I don't know correct way but I use 2 editions Home and Pro in single ISO and once apps in Home edition is integrated, I add same ini file with few changes and select Delete Old Installers options. WTK SFX works on 1803 and 1809 w/o issues.
Even Appx removals is buggy on 1809 and 1903. It is shown as removed but once its installed in VM all Appx aren't removed. So, for I'm using NTLite specifically for Appx removals. For integrating updates and drivers, tweaks etc.. I use WTK because its very fast and has less buttons and its very easy too.
Can you add Component Cleanup and Reset Base feature for boot.wim files for all indices 1 and 2? It really trims the obnoxious sizes of 2.1GB to 1.1GB and has drastic reduction in ISO size as well. For now, I keep the images mounted using WTK and run the Reset base of Dism using /Image cmd line.
I'm attaching ini Profile/Presets I used on Win 10 v1903.