A collection of 70 hand-picked, web-based tools to interactively generate or play with CSS. The list contains all the utilities to help you create a fancy modern web app.
 

A lot of powerful features Typescript has to offer remain relatively unknown. Explore these lesser-known features of TypeScript that make it more dynamic in case the opportunity to use them arises.
 

A variety of real-life projects to keep you engaged during your studies or test your frontend skills. To benchmark and polish up your skills, try creating a Virtual Piano app.  

If you read the last Tech Life edition (you did, right?), you know Shopify handled an enormous amount of queries during the Black Friday / Cyber Monday. Here are more details on the strategies they use to handle this kind of load. Beware, many links redirect to other blog posts detailing all this even more. If you're into this kind of topics, you may be in for quite some reading time here.
 

Hanami 2 was released about 15 days ago now. We already shared the news but maybe you're wondering what Hanami is about? Here's a blog post with more details about the main components of an Hanami app, and some feedback after Pawel using its early version since July, by Paweł Świątkowski.
 

Christmas is close, and as usual, the new Ruby version is also approaching! Here's the 3.2 RC1. Things I found interesting among many others: we'll be able to use keyword args for Struct without keyword_init and Set will receive more love.

Have you heard about these related concepts for PR reviews and commit messages? They aim to add both human and machine readable meaning to comments and commits respectively. 
Even if you don't want to fully adopt these concepts, I think everybody can take some inspiration for a more respectful and efficient collaboration.
 

What is the difference between nice and kind you might ask? Mercedes Bernard explains how there is a big difference when it comes to feedback and how nice feedback is possibly not as helpful as you might think.
 

Monday happens to be BUG day in my feature team. As I am sitting here putting together this section of the newsletter, I can't help but smile due to the accuracy of this nicely illustrated manifesto. 

Have you ever suffered from your business alerts which are not relevant enough causing too many false alerts? At Doctolib, as the company wants to know if its features are working as expected, we work hard to make our business monitoring as efficient as possible. Check out this article on how Doctolib adapted business alerts to make them more relevant to avoid false alerts 
 

Doctolib took part in an event hosted by Fireside and Iron Hack dedicated to woemn in data. They had a panel discussion from three women working in different careers in data and the panel included one of Doctolib's data scientists, Eulalie Formery. We even had a crash course on data visualization from Iron Hack team.