I saw Aria2 has two packages in F-driod. I installed them and looked at the docs but I couldn't figure out how to download stuffs with Aria2. A small example of it's use will be highly appreciated. Thank you.
you need both. One of them pnly supplies a UI, while the other only supplies the binary. I personally recommend running aria2c via termux and using ziahamza.github.io/webui-aria2