Simple Scala with Li Haoyi

Scala is a formidable language but some its libraries have a steep learning curve.
If you are looking for a simple tech stack that lets you focus on business requirements then the Li Haoyi ecosystem is a great choice.
Hands-on Scala programming book: www.handsonscala.com/
Blog: www.lihaoyi.com/
Scala at Scale at Databrick: www.databricks.com/blog/2021/...
GitHub: github.com/com-lihaoyi
Twitter: li_haoyi?lang=en
--- Chapters
00:00 Introduction
00:39 Working on Open-Source
02:34 Principles of the Li-Haoyi Ecosysten
04:44 Focus on Beginners
06:18 Getting burned by Complexity
09:09 Scala is a Big Tent
10:21 The Impact of Mill
12:08 The Performance of Mill
14:14 The Batteries Included Approach
17:49 Migrating from SBT to Mill
19:48 The Impact of Scala CLI
21:03 The Reproducibility of Scala Projects
22:53 Scala 2 or Scala 3?
24:53 Macro in Scala 3
26:30 The Migration to Scala 3
29:11 Improving Scala 3 Documentation and Tooling
30:16 The Slow Migration to Scala 3
32:58 Responsibilities at Databricks
35:26 Databricks Products
37:51 Scala at Databricks
42:27 Hands-on Scala Programming Book
49:26 Self Publishing
52:31 Simple Scala
55:18 The Scala Improvement Process
#Scala #podcast #tooling

[@estebanmarin002]

Awesome talk! thanks for this

[@geaziantunes7331]

Great! Thanks

[@kostas---]

Interesting video, just one comment for me for now, Li & anyone who wants to write scala3 macros better use vscode + metals as it is much better at recognizing types, autocompleting etc. I had similar issues with intellij and a couple of macros I was writing recently and when I was editing the macro code I was switching temporarily to vscode.

[@Scala-for-Fun-and-Profit]

Thanks for the recommendation. Unfortunately, a big chunk of the Scala developers prefer IntelliJ and if the Scala 3 support isn't great, they will most likely prefer to stay in Scala 2.

[@intellective8284]

I really suffered from the clumsiness of the play framework and some phenomenal complexity of the typelevel libraries. And to be honest, for a long time I felt stagnation in all this and lack of understanding where to move. However, my last experience of implementing softwaremill ecosystem + zio ecosystem in our company projects had a very positive effect. You literally start to enjoy writing code, your colleagues are happier and it's easier to onboard new employees to this.

[@dmihovilovic]

Totally agree with keeping Scala simple for most tasks. Trying to push things like Zio for everyone and everything will end up killing the ecosystem.

[@Scala-for-Fun-and-Profit]

ZIO, typelvel or akka are all great tech stacks but they are complex. IMO, you should chose them either if you have a valid use case or if you can easily access people familiar with those stacks.

[@street.programmer]

For me, I would like to write plain Scala code without using FP libraries/frameworks but then again most Scala job vacancies I could find require experience in those

[@joan38]

scala-cli supports scripting but does not have REPL support unlike ammonite AFAIK

[@SivaramKonanki]

you can scala-cli repl -dep -dep , this creates a repl with those dependencies

[@joan38]

1:05:09 We had SIP process for at least 8 years => www.youtube.com/@ScalaProcess/streams
I wish it was still streamed.

[@joan38]

30:20 Pretty much all the Scala community is on Scala 3, we are just waiting for Databricks to upgrade Spark :D

[@nafg613]

I think Kit Langton is working on a book on Scala Macros?

[@Scala-for-Fun-and-Profit]

Yes, he is. Knowing Kit, I am sure it is going to be great.

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[@TJ-hs1qm]

Scala has ignored the entire developer market in India which is essentially the back alley for cheap labor in the US. But the whole FP eco-system is mostly driven by Europe's academia. US companies have historically been very unenthusiastic about FP if it cuts into profits (see F# vs. golang). The OO-FP experiment has likely failed due to these economic realities. Not saying that this is the primary reason, but it could be a contributing factor.

[@Scala-for-Fun-and-Profit]

What does it mean "Scala has ignored the entire developer market in India"? What do you think the Scala center or companies should have done?

[@alex1476]

I am wondering why you are not starting your own Scala company.