can't see ownCloud in a list of available software

Can’t see ownCloud in a list of available software. Is this a known issue?

I have the same issue. Did you find a solution?

See: https://dietpi.com/forum/t/cant-find-owncloud-in-the-list-of-optimized-software/3409/2

Okay, I just created a PR to allow ownCloud install with PHP7.3 due to recent release: https://github.com/MichaIng/DietPi/pull/3169
After updating to DietPi v6.26, please try:

wget https://raw.githubusercontent.com/MichaIng/DietPi/owncloud/dietpi/dietpi-software -O /DietPi/dietpi/dietpi-software

This should allow you to install ownCloud on RPi1/Zero and Buster-based systems via dietpi-software.

I will keep this branch active until v6.27 release, since it does not contain any other changes yet, hence is safe to use on v6.26.