If you managed to install Wallace, just install the (unpacked) KaiBoy version the same way you installed Wallace.
By unpacked, I mean unpack the .gpkg.zip and then unpack the application.zip from it into a separate directory. And install through WebIDE.
Alcatels with KaiOS 1.0 (such as OT-4044O) don't support exactly same app management API as KaiOS 2.0, so the OmniSD approach might not work as expected.