This Week in Effect - 2024-03-01

Mar 1st, 2024

Hi Effecters!

Welcome to a special edition of This Week In Effect (TWIE) with some juicy news from our event in Vienna! TWIE is our weekly update that aims to help you keep track of everything that is going on inside our Community and the Effect Ecosystem.

If it’s your first time here, Effect is a powerful TypeScript library designed to help developers create complex, synchronous, and asynchronous programs. One of the key features that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.

To get started, below you’ll find our quick-start guide and documentation that will be your first step in your Effect journey. Enjoy!

Effect quick-start guide

Effect docs

Overview of TWIE

If you're new to TWIE, here are a few words on what TWIE is and what it aims for.

We’re happy to see the community growing so fast, with more and more people adopting Effect. At the same time, we understand that it might not be easy keeping up with everything that is going on in the Effect Ecosystem:

  • Our Discord server reached 1970+ members a few days ago and the engagement is at an all-time high.
  • We just had our very first Effect Days Conference in Vienna on February 23, 2024. It's been an amazing experience connecting with our community in person. If you couldn't join us in Vienna, we've got plenty of exciting updates and content coming your way, so stay tuned!
  • All projects around Effect are receiving key updates and there has been a lot of activity on GitHub!

We want to make it easy for you to find all the info you need to fully enjoy your Effect journey and actively engage with our community!

And, that’s why we created TWIE – a weekly update to inform you about key events about Effect in the previous week, both from the community (Discord discussions, X posts, YouTube content, etc.) and from a technical standpoint.

Now, back to business!


First important news: Effect 2.4 has been released! Read the release post! Below you may find the list of all changes that occurred in the last two weeks (note that changes already included in the 2.4 release will not be mentioned).

Effect Core

Effect Schema

Effect Platform

Effect CLI

Effect RPC

General Chores


In the last two weeks, we welcomed +90 new Effecters to our Discord server! Thank you to all our new members for joining the Effect community, and we're excited to have you on board!

Our Effect Days were spectacular!

Reflecting on the past week, we're filled with gratitude for the incredible experience we've had! We want to extend a massive THANK YOU to all the attendees, speakers, workshop instructors, and everyone who contributed to making this event possible. Your enthusiasm and support have been truly inspiring!

We want to give a special shoutout to Sebastian Lorenz and Nik Graf for their tireless efforts in organizing and executing this intense three-day event. Thank you for making our vision a reality!

To ensure that everyone in our community can experience the excitement of Effect Days, we'll be sharing recordings of the conference talks on our YouTube channel in the coming weeks and the workshop sessions in the next few months.

Conference Day

Starting with some exciting news, we're thrilled to share two main announcements from the Conference Day that are sure to bring joy to many of you:

  • Tim Smart unveiled a new VScode Extension designed to empower every developer using Effect with Telemetry & Metrics capabilities in their development process;
  • Michael Arnaldi announced the upcoming release of the first release candidate, set to launch within the next few days. The estimated timeframe for the first stable release of Effect is approximately one month from now.

Workshop Day

Moving forward, on Thursday, the 22nd, during our Workshop Day, we had the opportunity to ask our workshop instructors for their advice for newcomers approaching Effect. Check out their insights in the videos below:

Maxwell Brown

Ethan Niser

More interviews are coming in the next few days, so make sure to follow our X account and YouTube channel to stay updated!

Community Day

On Saturday, February 23rd, we engaged in an intense laser tag session, with thrilling battles unfolding on the battlefield, resulting in a few victorious champions and one honorable casualty.

After the laser tag battles, peace was restored, and the day continued with a city tour. We had the chance to explore the vibrant center of Vienna, soaking in its rich history and culture, and spending valuable time together as a community.

Effect Days wrap up

Wrapping up this post, we'd like to share a compilation of tweets from the event. We hope to evoke fond memories for all attendees and provide a glimpse into the unique experience shared by both attendees and organizers alike, including those who were unable to join us.

Closing Notes

That's all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this new format. Feel free to share your thoughts, and we'll do our best to tailor it to the needs of our community.

The Effect Community Team

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