A bit more info on the system from the kickstarter FAQ:
Kalymba's rules are based on the +2d6, a TTRPG system that's very popular in Brazil for being easy to understand, play and adapt. To play Kalymba, you just need a handful of d6 dice, a character sheet for each player, and Kalymba's core rulebook.
Kalymba's rules system has no pre-established classes, so you're free to create unique characters through point-buy.
You'll have 10 points to distribute between your six attributes (Strength, Agility, Vigor, Intellect, Ginga, and Ori), and 25 points to distribute between your skills (there are six categories: Physical Skills, Social Skills, Knowledge Skills, Resistance Skills, Senses, and Occupational Skills). You also have 3 points to buy Special Abilities to make your character even cooler.
Tests are made by adding [2d6+Attribute+Skill], even the combat ones. The higher the result, the better your character's performance on that particular action.
At the end of each adventure, you'll gain experience points (XP) so you can tier up and then level up. There are five levels: Kid, Brave, Veteran, Hero, and Legend, and each level has four tiers (1, 2, 3, 4). When you tier up, you receive skill points and special ability points. When you level up, you receive an attribute point and expand the range of abilities you can buy. It's kinda simple, and the book has a table for that, don't worry.
Using your special ability points, you can also learn new mandingas (spells) and/or receive orisha gifts (abilities given by the gods to their favorite devotees).