It is indeed fairly easy. To get started you just need a scoby from someone or you could buy it online through Amazon or a local marketplace (there is a local community on Facebook in my country that allows users to share scobys).

With respect to recipes, there are many to be found online. Maybe this helps a bit? This is how I do it myself.

• Make strong black tea, dissolve 70g cane sugar per liter. I think some people use less sugar maybe.
• when cool, add to scoby from previous batch in large container with access to air through a cloth (prevents insects etc from getting in)
• ferment for 1-2 weeks depending on temperature and desired tartness. This is F1
• make syrup with fruits, sugar, water and strain or take some fruit juice
• add to bottle that can withstand pressure (flip top bottles from Grolsch work well). Fill up with F1 kombucha. I think I use more or less 1:6 ratio of syrup:kombucha. Make sure to fill the bottle almost completely.
• Ferment for another few days (~ 4 days) in closed container to build carbonation. This is F2
• refrigerate and enjoy

Good luck!