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I recently got the chance to explain what containers are to colleagues of mine. I could’ve chosen the normal path of showing off docker run commands, how to create a Dockerfile and then go about creating a Docker container. I understand that this was the common intro to containers for most people but for me, it makes Linux containers somewhat holy. I instead did a session on writing some golang code to explain what containers really are. I used asciinema to record the whole session and replay it at a fast speed which I screen-recorded using Kazam on Ubuntu. The presentation on the bottom-right of the screen was done using mdp ...

Unidirectional dataflow is a pattern in which data flows only in one direction. Unidirectional dataflow was introduced by Facebook in Flux architecture. Although flux is meant for client-side UI apps, such an architecture is also very interesting for constrained embedded firmware systems. This is why the Flux architecture intrigues me: a restriction (one-way data flow) liberates you from a world of spaghetti. The coder is forced (or at least, strongly tempted) to create abstractions, dispatchers, stores and queues so that he can meet this criteria. Uni-directional dataflow also has the advantage of inherently suggesting the developer that he should make abstractions based on functionality. ...