nds-bootstrap introduce a dldi driver and an arm7 patcher allowing to have some dldi compatibility without flashcard and without recompilation of homebrews. The compatibility is not yet perfect.
Extract the zip at the root of your sdcard
It can be configured via the file _nds/nds-bootstrap.ini
I recommand to use a frontend menu to avoid manual ini file modification : nds-hb-menu have just been updated.
https://github.com/ahezard/nds-hb-menu/releases