For now the game doesn't come with easy tutorial or any kind of help. So here is a little explanation to get you started.

From the main menu choose Puzzles and then choose the "First Introduction" Puzzle. Once in the game screen, click on the hexagon icon with the letter 'N' and place your first tile anywhere on the grid. Press 'e' to edit this tile properties and in the value field enter '5' and click on the Done button. Next, click on the hexagon icon called 'OUT' and place it to the right of the first tile. Use Shift-5 (if you placed it to the right of the previous tile) to change the port directions, so that now the arrows indicating the direction will turn green. Next, press on the 'Play' button to see the simulation running. If you did everything correctly, the 'out' buffer will fill with the number 5 and will match the expected buffer. Once it's all done you will see a scoring screen.

That's it. From there explore on your on.

Note: if you pressed on '5' instead of 'Shift-5' it will change the Tile speed instead of the Tile port direction. Press '1' to change the speed back to normal.

Here is a video: Youtube First Introduction