Roman Langolf

Software engineer 👨‍💻
Expat based in 🇻🇳📍

19** 🇷🇺 ➡️ 1997 🇩🇪 ➡️ 2019 🇬🇧 ➡️ 2022 🇻🇳

[Roman Langolf @r0_lang]

Really enjoyed @Lambda_World 2025 in Cadiz! 🙌😁

[Roman Langolf @r0_lang]

Was surprised to see that avatar on the badge since I didn't provide any photos of me during registration 😅🎉 #lambdaworld25

[Roman Langolf @r0_lang]

It was nice to meet a bunch of people from the community at @ScalaIO_FR :) First time I saw a talk with a dog on the stage :D 🐶

[Roman Langolf @r0_lang]

it's time for another @ScalaIO_FR + @Lambda_World combo I did in 2018😁 (#ScalaIO2018 #LambdaWorld #LambdaWorld2018). Let's go ✈️!

[Roman Langolf @r0_lang]

@guizmaii @Krever01 I decided to drop it some time ago, even go to JDK 21+. It's so much more enjoyable to have a pure Scala 3 code base only. If you don't have or care too much about wide adoption, then I'd not deny myself the pleasure :D

[Roman Langolf @r0_lang]

@guizmaii not for Grafana unfortunately. I've set up some dashboards using built-in monitoring solutions in Google Cloud after exposing the metrics via http since this is where we run the stuff, it was the easiest way. I miss using Grafana for that😅

[Roman Langolf @r0_lang]

@guizmaii @987Nabil Haven't done that for re-reading the env either, occasionally need to update an env config, but then restart the process manually to pick it up.

For some other cases I forked a loop within a layer life cycle, something like that:

[Roman Langolf @r0_lang]

@guizmaii @987Nabil Same here, removed all config files long time ago, no regrets. Using zio-config and read configurations from environment usually once on startup. I guess one could provide a config as Ref[MyConfig] that is refreshed periodically in the layer if needed.

[Roman Langolf @r0_lang]

@ghostdogpr wondering if automatic removal could be built into the compiler via some -rewrite flags as some rewrite options are already available

[Roman Langolf @r0_lang]

@ghostdogpr @oNouguier yeah, much slower, I like the automatic removal of unused imports, but I guess that requires a lot more work to determine that. I may give it a try to use scalafmt and compiler warnings instead.

[Roman Langolf @r0_lang]

@Krever01 We also replaced Flyway with https://t.co/lktzBfNwVL along the way as we were using skunk for db access, that might have affected performance as well 😬

[Roman Langolf @r0_lang]

@Krever01 We still keep running migrations before each tests, but we optimized it by running them in parallel against the same Postgres docker container.
We create a new database with a random name instead that is provided to the test as connection config to keep them isolated.

[Roman Langolf @r0_lang]

@ghostdogpr did the same, didn't see the point anymore in parsing config files

[Roman Langolf @r0_lang]

@ghostdogpr 🖐️🇻🇳 😄 Thanks for your quick support and the PR on this!! It was also nice meeting you! #ScalaMatsuri was indeed a blast.

[Roman Langolf @r0_lang]

@guizmaii @graalvm I am just about to introduce an alternative to flyway to my team in the Scala code base that compiles with Scala Native and is compatible with flyway history using skunk, so not quite the same and only works with Postgres, but that's all we care about, let's see how that goes 🤷🏻‍♂️

[Roman Langolf @r0_lang]

hehe, recently I was wondering wth happened to my phone because it started making sound when I took photos and I could't disable it... turns out it gets enabled automatically when I stay in Japan because it's required by law 🇯🇵📸🔊👌

[Roman Langolf @r0_lang]

@ScalaMatsuri was fun!! Thank you guys!! 🙌 @eed3si9n @alexknvl @jetbrains @jorgesg1986 and many more...

[Roman Langolf @r0_lang]

This should be shown on all stairs! 😬 5.4 kcal burned!!! 💪🔥 A pity I can't read the text...

[Roman Langolf @r0_lang]

Hello Tokyo ✌️ nice to be here again! Looking forward to #ScalaMatsuri