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OpenSavvy

@opensavvy.dev

Open source projects with a deep focus on quality, automation and security. opensavvy.dev Maintained by @ivcanet.bsky.social and Maxime Girardet

Posts Replies Media

OpenSavvy @opensavvy.dev · 13/08/2026

Prepared 2.6.0 now integrates with both the Kotest and TestBalloon IntelliJ plugins! prepared.opensavvy.dev?utm=bluesky

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OpenSavvy @opensavvy.dev · 20/04/2026

Dokka for MkDocs 0.6.3 is out! • Overloads are easier to read • The table of content is more concise dokka-mkdocs.opensavvy.dev Before / after ↓

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OpenSavvy @opensavvy.dev · 27/03/2026

Now *this* is the developer experience we envision

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OpenSavvy @opensavvy.dev · 18/03/2026

Before / after

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OpenSavvy @opensavvy.dev · 18/03/2026

Before / after

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OpenSavvy @opensavvy.dev · 18/03/2026

Here are a few examples in the KtMongo repo Before / after

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OpenSavvy @opensavvy.dev · 01/03/2026

Dokka for Material MkDocs 0.5.4 is out! • Kotlin 2.3.0 • Gradle 9.2.1 • Dokka 2.1.0 • Native breadcrumb support dokka-mkdocs.opensavvy.dev

Screenshot of https://dokka-mkdocs.opensavvy.dev/api/-library%20module/opensavvy.dokka.material.mkdocs.example/foo2.html

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OpenSavvy @opensavvy.dev · 09/02/2026

Spine 0.9.1 comes with bug fixes for #Arrow compatibility for typed #Ktor endpoints: Thanks @skye.codes for the contribution!

routeWithRaise(User.get) {
val id = idOf(User)

val user = dataLock.withLock("get $id") { data.find { it.id == id } }

ensureNotNull(user) { NotFound(id) }

respond(user)
}

252

OpenSavvy @opensavvy.dev · 03/02/2026

With KtMongo 0.26.0, easily compare two complex BSON documents or arrays Particularly useful in tests to understand what changed! ktmongo.opensavvy.dev

✗ a:
✓ 0: 1
✓ 1: 2
✗ 2: (field not present)
"Bob"

check(a == b) { (a diff b) ?: "no diff" }
| | |
| | {"a": [1, 2, "Bob"]}
| false
{"a": [1, 2]}

021

OpenSavvy @opensavvy.dev · 03/02/2026

With KtMongo 0.26.0, use complex JSONPath expressions to find data in your BSON documents! ktmongo.opensavvy.dev

test("Multiple indices") {
check(multiDoc().select<String>("$.a[0, 3][0:1:2]").toList() == listOf("a", "d"))
}

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OpenSavvy @opensavvy.dev · 28/01/2026

We can't view our own profile anymore though

000

OpenSavvy @opensavvy.dev · 30/12/2025

Starting in KtMongo 0.25.0, the KtMongo '/' notation recognizes KMongo's @BsonId and KotlinX.Serialization's @SerialName when using the KMongo compatibility module. Users can add support for their own annotations by overriding PropertyNameStrategy. Learn more → ktmongo.opensavvy.dev/api/-mongo-d...

@Serializable
data class Test1(
@field:BsonId
val a: NameStrategyProfile,
)

020

OpenSavvy @opensavvy.dev · 27/12/2025

We now provide a custom #Docker image specifically for compiling #GitLab CI pipelines in #Kotlin gitlab-ci-kts.opensavvy.dev/tutorials/in...

040

OpenSavvy @opensavvy.dev · 26/12/2025

In KtMongo 0.25.0, the new experimental BsonPath class allows extracting #MongoDB documents using #JSONPath queries! Currently only a subset of the JSONPath syntax is supported, more will be added in coming versions. Send us your feedback! ktmongo.opensavvy.dev/api/-kotlin%...

val document = context().write(bob)

val age: String = bobDoc() at BsonPath.parse("$.pets[1].age")

031

OpenSavvy @opensavvy.dev · 03/12/2025

Kotlin is a great language for scripting, and has much better support in IDEs. Use loops, built-in plugins (showcased: the Gradle plugin) and quality-of-life goodies, like automatic shell color highlighting!

val dokka by job {
image("openjdk")

script {
gradlew.task("dokkaHtmlMultiModule")
shell("mv build/dokka/htmlMultiModule documentation")
}

artifacts {
include("documentation")
exposeAs("Documentation")
}
}

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OpenSavvy @opensavvy.dev · 11/11/2025

What if you could easily analyze intermediate values in your tests? Learn how with Prepared and Power Assert → prepared.opensavvy.dev/api/-suite/o...

Code:

test("My test") {
log(12 + 5) { "Important intermediary result" }
}

Output:

» Logged ‘17’
Important intermediary result
log(12 + 5)
|
17

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OpenSavvy @opensavvy.dev · 22/10/2025

KtMongo 0.24.0 is out, with our new mascot, Mokodee! This version contains new syntax sugar for $unset, and improvements to the documentation. ktmongo.opensavvy.dev/news/2025/10...

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