What people recommend, in their own words, with the receipt.
5 companies
In 2024, the sitar-agent underwent a full rewrite from Ruby to Java, Airbnb’s mainstream JVM language, giving the team an opportunity to modernize the architecture alongside the language migration.
Airbnb's sitar-agent rewrite from Ruby to Java (undated page)
In the backend we are primarily using Java and Kotlin.
Wise's 2025 tech stack update: backend languages
medium.com ↗·2025-02-12Wrong?
At Square we’ve been running a microservices architecture for years, primarily using three different languages: Java, Ruby and Go.
Square's microservice languages
developer.squareup.com ↗·2019-03-29Wrong?
Kotlin allows writing more succinct code with fewer pitfalls compared to Java and comes with a lot of useful features and libraries (e.g. data classes , null safety ) that Java does not (yet) have as part of its standard library.
Zalando comparing Kotlin with Java for backend services
engineering.zalando.com ↗·2021-07-01Wrong?
our web applications are moving away from Java and onto JavaScript and node.js. Historically, our engineering teams have been segmented into those who code for the browser (using HTML, CSS and JavaScript) and those who code for the application layer (using Java).
Why PayPal moved its web applications from Java to Node.js
medium.com ↗·2013-11-22Wrong?
Every entry is a verbatim quote and a link to the public post it came from. Nothing is paraphrased. If it is not on record somewhere public, it is not here.
The verdict is what they actually said: loved and liked are explicit; recommended means they told others to get it; uses means they only say they use it; read is a book on their public shelf with no verdict; mixed and disliked are kept too.
A dashed affiliate link, sponsored or their own label means the post disclosed a relationship. It is shown, never hidden.
The small bar beside a date shows how dated a recommendation is for its kind of thing.
The bar shows how dated a recommendation is, for its kind of thing. Full and green is recent. It drains, and turns amber and then grey, as the post gets older.
What counts as old depends on the thing. A laptop praised four years ago has been replaced twice; a book loved twenty years ago is probably still loved. The bar is empty after about:
A striped bar means the post carries no date and the date shown is an estimate. No date at all, no bar.