Ivan “CLOVIS” Canet

@ivcanet

Kotlin developer & teacher @ 4SH, learn more about me: ivan.canet.dev Open source at • @opensavvy.techhub.social.ap.brid.gy Organizing the Kotlin Bordeaux User Group at

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Ist das dein Profil?Übernimm es — dann gehört dir ivcanet.dirty.social.Profil übernehmen

Ivan “CLOVIS” Canet@ivcanet· 29d

👀 kotlinleeds.co.uk/schedule

Ivan “CLOVIS” Canet@ivcanet· Jul 11

uhhhhhh ok?

The image shows garbled terminal output:

INFO - [07:41:56] Serving on http://0.0.0.0:8000/
2026-07-11T07:42:06.181474582Z WARNING - [07:42:06] " üé¡7óÈ@a?¥dÖòÂä<XüNëËÞZ}}+ Väû1ø" code 400
2026-07-11T07:42:06.182325954Z WARNING - [07:42:06] " üæEÀÇwíÂhÖ2&:`Æë¤dq·¶7·Q!T s}@ð¿Çõ=¸Ñp" code 400

Ivan “CLOVIS” Canet@ivcanet· Jul 10

ScalaJS and 64-bit integers 👀 github.com/JetBrains/ko...

$One concrete example: the following Scala.js method: def foo(a: Long, b: Long, c: Long): Long = a + b - c gets compiled to $c_Lhelloworld_HelloWorld$.prototype.foo__J__J__J__J = (function(a_$_lo, a_$_hi, b_$_lo, b_$_hi, c_$_lo, c_$_hi) { var lo = ((a_$_lo + b_$_lo) | 0); var hi = ((((a_$_hi + b_$_hi) | 0) + (((lo >>> 0) < (a_$_lo >>> 0)) | 0)) | 0); var lo$1 = ((lo - c_$_lo) | 0); var hi$1 = ((((hi - c_$_hi) | 0) - (((lo$1 >>> 0) > (lo >>> 0)) | 0)) | 0); return $bL(lo$1, hi$1); });$

Ivan “CLOVIS” Canet@ivcanet· Jul 10

Wow, unlikely!

A production-generated UUIDv4 where the fourth segment spells out 'beef'.

Ivan “CLOVIS” Canet@ivcanet· Jun 29

Right. Of course.

The Android plugin for IntelliJ, on Linux, complains that support for macOS is not installed.

Ivan “CLOVIS” Canet@ivcanet· Jun 23

btw you probably shouldn't buy a Pixel Watch. They can't pair at the moment, it's been at least a few weeks. Confirmed with Support that it's a known bug. Official recommendation is to wait for a fix. No timeline. Without pairing, they can't even show the time.

Pixel Watch showing a 'Continue on phone' screen with no other interactions.

Ivan “CLOVIS” Canet@ivcanet· Jun 17

“Regular open source projects will not be affected” Right.

Ivan “CLOVIS” Canet@ivcanet· Jun 15

Can you find the bug in this code? ivan.canet.dev/blog/2026/06...

import time

start = time.time()
print("hello")
end = time.time()
print(end - start)

Ivan “CLOVIS” Canet@ivcanet· Jun 15

👀 kotlinweekly.net ivan.canet.dev/blog/2026/06...

Ivan “CLOVIS” Canet@ivcanet· Jun 3

Oh and also

Ivan “CLOVIS” Canet@ivcanet· Jun 3

Kotlin 2.4.0 is out! blog.jetbrains.com/kotlin/2026/...

Ivan “CLOVIS” Canet@ivcanet· May 27

oh wow so surprising

Ivan “CLOVIS” Canet@ivcanet· May 23

Let's meet up again next year!

Ivan “CLOVIS” Canet@ivcanet· May 22

With @skydoves.bsky.social and Kyriakos: who will win Kodee Awards for Online Presence? Join the stream NOW! www.youtube.com/live/MmwBJbz...

Ivan “CLOVIS” Canet@ivcanet· May 22

Gratatouille with @mbonnin.net!

Ivan “CLOVIS” Canet@ivcanet· May 22

Context parameters with @serranofp.com!

Ivan “CLOVIS” Canet@ivcanet· May 21

♥️ KotlinJS: Past, present, future by @jsmonk.bsky.social

Ivan “CLOVIS” Canet@ivcanet· May 21

ShadowJAR demo with @goooler.bsky.social

Ivan “CLOVIS” Canet@ivcanet· May 21

Kobweb demo with @bitspittle.bsky.social !

Ivan “CLOVIS” Canet@ivcanet· May 21

I'm in the keynote???

Marton Braun showcases Compose Multiplatform improvements using the KotlinConf desktop app. The page he is viewing is the Kodee Awards page, which shows the lists of finalists, including me.

Ivan “CLOVIS” Canet@ivcanet· May 19

What this? 👀

The Munchen Messe conference center's west entrance

Ivan “CLOVIS” Canet@ivcanet· May 15

Bluesky is better with friends

Ivan “CLOVIS” Canet@ivcanet· May 13

I get it!

IntelliJ spamming that some code is unreachable

Ivan “CLOVIS” Canet@ivcanet· May 11

That's the reason‽

Wiki screenshot: "MongoDB (from humongous) is"

Ivan “CLOVIS” Canet@ivcanet· May 6

TIL leading zeros are legal in float literals

val a = 02 // Leading zeros are not allowed in integer literals.
val f = 02f

Ivan “CLOVIS” Canet@ivcanet· May 5

I'm not necessarily against displaying generated members, but could they at least be properly indented? 😅

Ivan “CLOVIS” Canet@ivcanet· May 1

Spring cleaning with Kodee

Ivan “CLOVIS” Canet@ivcanet· Apr 28

I'm normal and can be trusted with a build tool

Threatening squidward meme

Ivan “CLOVIS” Canet@ivcanet· Apr 28

That 'if you can' has become menacing lately

Scaling data is mostly about RAM, so if you can, buy more RAM.

Ivan “CLOVIS” Canet@ivcanet· Apr 26

Creating DSLs on the edge of what's possible

$@Suppress("INVISIBLE_REFERENCE", "WRONG_MODIFIER_CONTAINING_DECLARATION") @KtMongoDsl final inline infix fun <@kotlin.internal.OnlyInputTypes reified V> Field<T, V>.ne(value: V) { this.ne(value, typeOf<V>()) }$