Yes, very good advice, but according to my observation, RoR, Django, Flask, Elixir are all good tools, and PHP is still popular. Because I want to do remote wo

Yes, very good advice, but according to my observation, RoR, Django, Flask, Elixir are all good tools, and PHP is still popular. Because I want to do remote work, so I want to learn as much as I can, so I can catch up more works. That's my thoughts at present.