Create a embedded app to sign transactions with a Ledger
Make your desktop/web app use a Ledger via USB/Bluetooth
Get your blockchain supported in Ledger Live
Add a ERC20, BEP20, Polygon, ASA, TRC10 or TRC20 token to Ledger Live
Integrate your DApp or Web app as a Live App in Ledger Live
Add the support of the Ledger Button to your DApp