Linux on DeX, announced at a developer conference last year, is a program that lets you run Linux (Ubuntu, in this case) on your Samsung smartphone or tablet, turning it into a full-fledged computer. Initially, it only worked on the Galaxy Note 9 and Tab S4, but with today's update, both Galaxy S9 and S10 families are now supported (along with, for some reason, the mid-range Tab S5e).

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