London Scala User Group

Are you interested in speaking at Scala Days, but not sure what to speak about? Join the Scala Days proposal hack! Come and discuss ideas in a friendly and welcoming environment.

How it works
Join us online on the ScalaBridge Discord. We'll split into groups and discuss ideas, write up proposals and review them. By the end, everyone will have at least one proposal.

Frequently asked questions

I've never spoken at a conference before and I'm not sure if I should. Am I really qualified?
Absolutely! Noel Rappin, a RailsConf organizer, has a good article on this here. In short:

• A conference that was limited to only people that really thought they were the most qualified person to talk would be depressing, if not completely horrific.
• You are absolutely the most qualified person to tell me what you think on a particular topic.
• This is how you become qualified. You study something, you teach it to other people.

I'm very junior and new to Scala. Am I qualified to submit to Scala Days?
Definitely! The Scala community would love to hear from you. In case you missed it, have a read of Noel Rappin's article.

I don't want to speak about a technical subject. Would Scala Days still be interested in my proposal?
Of course! Experience reports are greatly desired. For example, Scala Days would be interested in your experience learning Scala, hiring or managing Scala developers, teaching Scala to others, or avoiding burnout while contributing to the Scala ecosystem.

When is Scala Days?
It's from the 19th to the 21st August. More details are on the Scala Days website .

Should I really speak at Scala Days?
Yes! As well as being able to share your ideas on the most prestigious Scala stage, you'll be given a free ticket to the conference and possibly even have your travel and accommodation expenses covered.

I'm nervous presenting. Can I get help practicing?
Yes! The London Scala User Group is happy to mentor you throughout the process and give you as much help as you need preparing your talk. We have experienced speakers on hand to give you ideas and feedback throughout, and the opportunity to present to a smaller group.

How do Scala Days submissions work?
To submit, you'll fill in this form . We'll work on the sections during the hack.

I can't make it to Scala Days. Can I brainstorm ideas for other conferences?
You're welcome to brainstorm ideas for Scala-related conferences. For example you can brainstorm ideas for Lambda World (submissions are yet to open), or even just your local meetup.

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🗣️ Would you like to present, but are not sure how to start? Give a talk with us and you'll receive mentorship from a trained toastmaster! Get in touch through this form and we'll get you started
🏡 Interested in hosting or supporting us? Please get in touch through this form and we can discuss how you can get involved.
📜 All London Scala User Group events operate under the Scala Community Code of Conduct:
https://www.scala-lang.org/conduct/
We encourage each of you to report the breach of the conduct, either anonymously through this form or by contacting one of our team members. We guarantee privacy and confidentiality, as well as that we will take your report seriously and react quickly.

Agenda
6:00pm - 🥤 Doors open. Come along and grab a drink!
6:40pm - 🗣️ Jędrzej Rochala: Compiler-First Development: A Fresh Take on Scala in IntelliJ
7:20pm - 🍕 Intermission: Join us for some free food and drinks! Vegan, vegetarian and gluten-free options are provided. Let us know if you'd like something special - we'd be happy to accommodate.
7:50pm - 🗣️ Haoyi Li: Solving Scala's Build Problem with the Mill Build Tool
8:30pm - 🥤 Socialising: Grab a drink and let's discuss the talks.
9:00pm - 🍻 Join us in The Butcher's Hook and Cleaver pub to discuss the talks!

🌐 This event has a live stream. Watch this space for more details.

🗣️ Jędrzej Rochala: Compiler-First Development: A Fresh Take on Scala in IntelliJ
In this talk, I will introduce a fresh take on the Scala Plugin in IntelliJ IDEA based on the standard Scala compiler.
This approach delivers zero false positives, dramatically improves performance and enhances syntax highlighting - all while maintaining robust Java interoperability. On top of that, you can expect correct diagnostics popping up instantly, without any need of saving the files. Did I also mention that compiler plugins are also supported out of the box?
And that's not even all the features. Join us to discover all of them.

⭐ Jędrzej Rochala ⭐
Jędrzej is an engineer at VirtusLab contributing to the Scala 3 compiler and Metals.

🗣️ Haoyi Li: Solving Scala's Build Problem with the Mill Build Tool
Mill is a Scala build tool that improves upon every aspect of the venerable SBT toolchain: more performant, easier to understand, and scalable to larger codebases. Unlike most build tools, Mill makes build configuration easy: easier to write, easier to navigate, and easier to understand. This talk will explore how Mill works, demonstrate its advantages over SBT in a live-coding setting, and dive into the novel techniques that a modern build tool uses to improve upon older build tools of years and decades past.

⭐ Li Haoyi ⭐
Li Haoyi graduated from MIT with a degree in Computer Science and Engineering, since then has built core infrastructure for high-growth companies like Dropbox and Databricks, and has been a major contributor to the open source community. Author of the "com-lihaoyi" suite of OSS Scala projects, these projects have over 10,000 stars on Github, and are downloaded over 20,000,000 times a month. Haoyi has deep experience in the JVM and has professionally built distributed backend systems, programming languages, high-performance web applications, and much more.

Frequently Asked Questions
I can’t get into The Trade Desk!
To attend our event hosted by The Trade Desk you will need to be registered with the building. Please provide your name and email address when registering.
Before the event, you’ll receive an email from “One Bartholomew” titled “Your appointment at One Bartholomew”. If this is your first time at The Trade Desk, you will need to fill in an online form. Following this, you will be sent a QR code.
On arrival, enter the building and scan the QR code at the barriers to access and see the lift on the display (A-F). The lift will send you to the 10th floor.
After exiting the lift, make your way to The Trade Desk reception.
You can find detailed instructions here .
————————————————————
🗣️ Would you like to present, but are not sure how to start? Give a talk with us and you'll receive mentorship from a trained toastmaster! Get in touch through this form and we'll get you started
🏡 Interested in hosting or supporting us? Please get in touch through this form and we can discuss how you can get involved.
📜 All London Scala User Group events operate under the Scala Community Code of Conduct.
We encourage each of you to report the breach of the conduct, either anonymously through this form or by contacting one of our team members. We guarantee privacy and confidentiality, as well as that we will take your report seriously and react quickly.

Frequently Asked Questions
I am a novice Scala developer, is this the right event for me? 📚
Yes! One of the best ways to improve your Scala skills is by working on Open Source library and projects!
If you're completely new to Scala / programming, ScalaBridge is a great way to get started!

I don't know what projects I should contribute to.. ↔️
We have a list of Scala projects that would love to have some contributions. Other than get-work-done libraries, we have cool projects like game engine, frontend framework, synthesiser!

I have an idea for a Open Source project but it's a bit daunting. Can you help? 🏔️
Yes! We'd love to see more open source Scala projects and contributors! We can help you get started and provide technical guidance whenever you need it.

You can find detailed instructions here .

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📜 All London Scala User Group events operate under the Scala Community Code of Conduct:
https://www.scala-lang.org/conduct/
We encourage each of you to report the breach of the conduct, either anonymously through this form or by contacting one of our team members. We guarantee privacy and confidentiality, as well as that we will take your report seriously and react quickly.