nf-metro 2.1.0 is out: seqeralabs.github.io/nf-metro/latest/releases/2.1.0 A few little engine fixes as usual, but you folks will be most interested in @Phil Ewels’s additions for native png and vid/gif output. So no need for Cairo any more, and you can make a gif of the 'moving balls' animation the SVG shows, for example (and I have thoughts on other purposes we can put that in-built animation recording to in future).