In the meantime best recommendable secured Wallets are the hardware wallets such as the "Ledger Nano X, BitBox02, Trezor Model T" and the rest few of them which are certainly open source rated as security Pro.
You said you are program and we here are just consumers (users) which my ideal, not everyone here do have the technological knowledge of the programs.
You also know better what you are up to develop, so, go ahead with your project while we would only rate your work and as well tell missing features that is expected to be and advance to existed ones.