MacOS screen annotation/presentation software

I was going to write a little application to let me annotate my MacOS screen during presentations, but the Ink2Go product looks like it does exactly what I was thinking. As I’m creating a video presentation, such as when showing how to write some Scala or Android code, I want to be able to draw on the screen, such as writing text, arrows, circles, and boxes to highlight parts of the screen. Ink2Go looks like what I want.

LiquidText: e-Reading done right

I just saw this video for LiquidText. It made me think that this is the sort of functionality I always wanted from Amazon Kindle. More accurately, I knew I didn’t like how Kindle worked, and LiquidText makes you think, “See, there it is, that’s what I want.” (I’ll know it when I see it.)

How to use Scala varargs fields from Java (varargs annotation)

This is an excerpt from the Scala Cookbook (partially modified for the internet). This is a short recipe, Recipe 17.5, “How to annotate varargs methods in Scala.”


You’ve created a Scala method with a varargs field, and would like to be able to call that method from Java code.


When a Scala method has a field that takes a variable number of arguments, mark it with the @varargs annotation.