FBI 3DS now has preleminary QR install support, as such, further development efforts will be focused toward extending the MEGA file (and eventually folder support) to that application instead. =

QR Web Loader

Usage: Point CAM1 (rear facing, right side) at a QR code containing the URL of the .cia you would like to install.

Usually about 9" away works well for a QR of normal size, but your device may differ. You can use both regular http/https links, as well as direct .cia file links on Mega.nz.

Compiling this requires my fork of citrus which provides an overloaded version of ctr::app::install() that implements callbacks, quirc for QR decoding, jsmn for JSON, and mbedTLS for AES/base64.