Move files (photos) between two android phones, without internet

Hello,
i have two phones, one with better camera,
i would like to send the photo from phone to phone, without using data transfer, FOSS

there was a program

but F-droid says it is not FOSS,

something you recommend?
i have Total Commander on both phones, would that help anyhow?

many thanks!

You have bluetooth on both?

Try this: https://web.archive.org/web/20210616190814/https://www.lifewire.com/bluetooth-file-transfer-4147725

TrebleShot is not FOSS anymore, but the version on F-Droid is FOSS

Warpinator is no good?

Total Commander has a plugin “Android Wifi”: https://www.ghisler.com/androidplugins/download/

You can make a server with primitive ftpd and use Ghost Commander SFTP to connect to it, etc