it’s on izzy :

https://apt.izzysoft.de/fdroid/index/apk/com.yoshi.rain

you can enable their repo on f-droid, see :

https://apt.izzysoft.de/fdroid/index.php

btw, omWeather is also a cool light one :

https://f-droid.org/en/packages/org.woheller69.omweather/

yeah, one of my fav

there is also “rain”, also lightweight an nice

512 m ram dunno, but I had an old 10 yo+ dual core / 4 gb ram laptop on arch working well, except for gaming. Just replaced it with ghostbsd, also fluid.

there is also ghost commander, looks nice at first glance

thanks everyone for our ideas, in the past i’ve used dolphin (kde) with mtp support to search files, it works but you obviously need a linux box.