How to install f.lux on Debian (8 = Jessie)?
official solution (sudo add-..-repository etc.) shownon justgetflux websitehi
==> result it tries to fetch the distribution for Ubuntu (repository not found <-- it shows ../ubuntu/...url)
unofficial solution (found on a blog post)
tar -xvzf xflux.tgz
sudo cp xflux /usr/local/bin
sudo chmod 755 /usr/local/bin/xflux
==> for some reason ./xflux (or just xlufx since it's not in bash path) returns bash: ./xflux: No such file or directory
I have always just downloaded the tgz from the website and manually tossed it in a /bin folder.
It really does need inclusion in the repos.
That's right, the simplest way to install f.lux on Debian (7 / 8 / LMDE2) is by downloading the binary and installing it to your /usr/local/bin/ directory.
On top of this, you could also install Xflux, which is a nice GUI for f.lux available here on GitHub...
If anyone is interested, I have a wiki page of mine that explains this in details