As usable as it could be after their developers got infected by that brain parasite (it is funny how functionality-wise pretty much everything is done in wrong way).

Plugins needed/enabled:

Since make clean seems not to work properly anymore

#!/bin/sh

cd /usr/ports

for port in `find . -name work -type d | sed -E -e 's/\/work.*$//'`
do
cd /usr/ports/$port
make clean
done

If it fails to start complaining that it can't find any theme install x11-wm/metacity

Clone their repository from git (tarballs created by them fail way too often)

git clone https://github.com/mono/monodevelop.git

Can be found here - BetterCrypto.org and ECRYPT II

Install /usr/ports/print/hplip-plugin (in the past mirror for that one was quite unstable so it was difficult to download all files needed). After that install /usr/ports/print/cups-filters as well (have no clue why they are removed from normal cups installation but without them you might have lot of errors similar to "Returning IPP client-error-document-format-not-supported for Print-Job". Printer should be working after this.

and if there are lot of messages similar to
kernel: linux: pid 64067 (skype): linux_sys_futex: op FUTEX_WAIT_REQUEUE_PI not implemented

remove port /usr/ports/audio/linux-c6-pulseaudio-libs and make sure /usr/ports/audio/linux-c6-alsa-plugins-oss is installed (last one might require tweaking /compat/linux/etc/alsa/pcm/pcm-oss.conf)

To manually trust single certificate do
certutil -A -d sql:$HOME/.pki/nssdb -t P -n description -i cert_file

To add new trusted CA do
certutil -A -d sql:$HOME/.pki/nssdb -t CT -n description -i cert_file


Do CTRL + SHIFT + u then type its code and press enter when done.

It can be done from command line using xdg-mime - might be useful if weird programs are started
xdg-mime default nautilus.desktop inode/directory

These associations are kept in /usr/local/share/applications/mimeinfo.cache, ~/.local/share/applications/mimeinfo.cache, maybe also some other mime* file in those directories