ftpd VS nxdumptool

you can interact with your SD card without taking it out using FTPD

Run sys-ftpd or ftpd and access your files from a computer using an FTP client

Use FTPD for quick file transfers to the 3DS over wifi without the need of removing the SD card. Available in the Universal Updater app.

FTPD: https://github.com/mtheall/ftpd/releases

I don’t have what you’re looking for but I have a solution for your screwdriver problem. Here is a video explaining how it works.

I have ftpd on my 3ds and I use FTPCafe FTP Client on my Android phone, then i download DS roms on my phone, after this I share internet (hotspot) to my 3DS, start ftpd on it, then put the IP that it says on the phone.

If you have a modded switch, you can dump it yourself using nxdumptool

I would use NX Dump Tool to dump games. It's been a while since I used it, but when I used it, it worked like a charm.

You buy your own eshop games/cartridges and use nxdumptool to rip them into either nsp or xci files along with any updates or dlc that you installed along the way.

use https://github.com/DarkMatterCore/nxdumptool/releases

It's possible to dump switch games from a hacked switch using this tool: https://github.com/DarkMatterCore/nxdumptool/releases

NX Dump Tool: Only useful if you have physical copies of games you want to dump - https://github.com/DarkMatterCore/nxdumptool/releases

After you've done all that, you need to install NXDumpTool and use it to transfer your games to your micro SD card.