TGAmiga

Telegram Amiga is a from-scratch, native Telegram (MTProto) client for
classic and Next-Gen Amiga systems. It signs in to a normal Telegram
account, lists your chats and exchanges messages. Zero external
dependencies: no MUI, no ixemul, no AmiSSL -- all crypto (RSA,
Diffie-Hellman, SRP/2FA, AES, SHA) is built in.

Two clients share one engine and one saved login:
  TelegramGUI  - native Intuition/GadTools GUI (scrollbars + mouse)
  TelegramTUI  - text/console client for low-end or mouse-less setups

Features: replies + right-click context menu, edit/delete, real delivery
checkmarks (one tick = sent, two blue ticks = read), double-buffered
flicker-free drawing, scroll-to-newest, persistent unread badges and
chat order. Message times follow the Amiga system clock.

Quick start: copy the drawer to a WRITABLE volume and double-click
TelegramGUI (or TelegramTUI). First run signs you in (phone -> code ->
optional 2FA). NEVER share telegram-auth.bin: it holds your session.

License: MIT. A non-commercial community project; full EN/IT manuals are
inside the archive. Development diary:
https://androidlab.it/en/telegram-amiga-mtproto-client-development-diary/