Portugal decriminalized it, you can't buy it legally anyway.

> If someone is found in the possession of less than a 10-day supply of anything from marijuana to heroin, he or she is sent to a three-person Commission for the Dissuasion of Drug Addiction, typically made up of a lawyer, a doctor and a social worker. The commission recommends treatment or a minor fine; otherwise, the person is sent off without any penalty. A vast majority of the time, there is no penalty.

Quote from: https://www.mic.com/articles/110344/14-years-after-portugal-...

That is indeed not quite the same thing. My impression of the Portugal situation was different, but apparently incorrect.

Portuguese are following a path of decriminalisation, which in a legal sense if a long shot away from the legalisation that the state of Luxembourg has just announced...

Production and sale are still criminalised in Portugal, and possession is still considered illegal, but with no penalties to first time offenders and considered a health issue for repeated offenders.

The major difference - Decriminalisation complies with their international obligations as per signed international treaties, Legalisation does not.

State of Luxembourg thinks they will get away with that, and I would bet this has been thoroughly vetted with their international partners.