The port will compile and install libtensorflow 1.15.2 and build photoprism from source on FreeBSD.
git clone https://github.com/huo-ju/photoprism-freebsd-port cd photoprism-freebsd-port make && make install
photoprism_enable="YES" photoprism_assetspath="/var/photoprism/assets" photoprism_storagepath="/var/photoprism/storage"
service photoprism start