pytest-flask-sqlalchemy

made by jeancochrane, submitted by porterjamesj
A pytest plugin providing fixtures for running tests in transactions using Flask-SQLAlchemy.

Reply: a REPL for Perl

made by doy, submitted by davidbalbert
A Perl REPL with support for tab completion, automatic class reloading, history support, and more.

Computer latency: 1977-2017

made by impostor, submitted by davidbalbert
A review of the last 30 years of computer input latency. Computers are getting faster, but latency keeps growing.

Creating fractal art

made by mags21walker, submitted by rachel
An interesting look at how to program a pen plotter to draw a Dragon Curve during a workshop at RC!

glightning

made by niftynei, submitted by porterjamesj
A Golang driver implementation for Bitcoin's lightning network.

Functional DevOps in a Dysfunctional World

made by vaibhavsagar, submitted by nicholasbs
An overview of how you can use Nix to build a better deploy process -- one that is automatic, repeatable, idempotent, reversible, and atomic.

I just made Ruby++

made by xuuso, submitted by nicholasbs
A guide to patching the Ruby interpreter's parser to add an increment (e.g., i++) operator.

Buggy calendar systems

made by xuuso, submitted by rachel
It's not every day that you uncover a 16th-century calendar bug in Ruby!

sunsign

made and submitted by spirtes
A mobile web app that when you input your name and birthday the next page will show you a greeting with your horoscope! Also a great example of how to use ReactiveSwift and MVVM for beginners.

Generalized game solver

made by Yoni, submitted by Mai
If you can program the rules, this general game solver written in Haskell can play!