To use this repository, add the following to /etc/apt/sources.list:

deb https://archive.midnightchannel.net/SonyPS/PS3/OtherOS/repo/ jessie ps3extras

also import my key

wget -O - https://archive.midnightchannel.net/SonyPS/PS3/OtherOS/repo/ps3extras.gpg.key | apt-key add -