- you could run the android app in anbox or an android emulator
- use the pidgin plugin lupine/purple-plugin-delta: A libpurple plugin for https://delta.chat - purple-plugin-delta - Gitea: Git with a cup of tea (many features are not implemented there yet)
- You could write your own front-end based on GitHub - deltachat/deltachat-core-rust: Delta Chat Rust Core library, used by Android/iOS/desktop apps, bindings and bots 📧 or join an existing front-end project:
~link2xt/kdeltachat - DeltaChat client built with Kirigami - sourcehut git - kde qt client
GitHub - adbenitez/deltachat-cursed: [WIP] Cursed Delta, a lightweight Delta Chat client for the command line - TUI client based on ncTelegram
Also that question was asked before for Linux at-least: