diff --git a/api/build.gradle.kts b/api/build.gradle.kts
index 98e18aa..87c7345 100644
--- a/api/build.gradle.kts
+++ b/api/build.gradle.kts
@@ -1,6 +1,7 @@
 plugins {
 	alias(opensavvyConventions.plugins.base)
 	alias(opensavvyConventions.plugins.kotlin.library)
+	alias(libsCommon.plugins.testBalloon)
 }
 
 kotlin {
@@ -19,8 +20,9 @@ kotlin {
 	}
 
 	sourceSets.commonTest.dependencies {
-		implementation(libsCommon.opensavvy.prepared.kotest)
+		implementation(libsCommon.opensavvy.prepared.testBalloon)
 		implementation(libsCommon.opensavvy.prepared.arrow)
+		implementation(libsCommon.kotlin.test)
 	}
 }
 
diff --git a/api/src/commonTest/kotlin/ParametersTest.kt b/api/src/commonTest/kotlin/ParametersTest.kt
index 2154694..447e9a4 100644
--- a/api/src/commonTest/kotlin/ParametersTest.kt
+++ b/api/src/commonTest/kotlin/ParametersTest.kt
@@ -1,8 +1,7 @@
 package opensavvy.spine.api
 
-import io.kotest.assertions.throwables.shouldThrow
-import io.kotest.matchers.shouldBe
 import opensavvy.prepared.suite.SuiteDsl
+import opensavvy.prepared.suite.assertions.checkThrows
 
 fun SuiteDsl.parameters() = suite("Endpoint parameters") {
 	test("Mandatory parameters") {
@@ -16,11 +15,9 @@ fun SuiteDsl.parameters() = suite("Endpoint parameters") {
 		}
 
 		check(params.archived)
-		shouldThrow<NoSuchElementException> { params.private }
+		checkThrows<NoSuchElementException> { params.private }
 
-		params.data shouldBe mapOf(
-			"archived" to "true",
-		)
+		check(params.data == mapOf("archived" to "true"))
 	}
 
 	test("Optional parameters") {
@@ -36,9 +33,7 @@ fun SuiteDsl.parameters() = suite("Endpoint parameters") {
 		check(params.archived == true)
 		check(params.private == null)
 
-		params.data shouldBe mapOf(
-			"archived" to "true",
-		)
+		check(params.data == mapOf("archived" to "true"))
 	}
 
 	test("Optional parameters with default values") {
@@ -54,9 +49,7 @@ fun SuiteDsl.parameters() = suite("Endpoint parameters") {
 		check(params.archived)
 		check(!params.private)
 
-		params.data shouldBe mapOf(
-			"archived" to "true",
-		)
+		check(params.data == mapOf("archived" to "true"))
 	}
 
 	test("Supported types are mapped correctly") {
diff --git a/api/src/commonTest/kotlin/PathTest.kt b/api/src/commonTest/kotlin/PathTest.kt
index c78725b..f09c653 100644
--- a/api/src/commonTest/kotlin/PathTest.kt
+++ b/api/src/commonTest/kotlin/PathTest.kt
@@ -1,7 +1,7 @@
 package opensavvy.spine.api
 
-import io.kotest.assertions.throwables.shouldThrow
 import opensavvy.prepared.suite.SuiteDsl
+import opensavvy.prepared.suite.assertions.checkThrows
 
 infix fun Addressed.shouldBeAddressedBy(expectedPath: String) {
 	check(this.path.toString() == expectedPath)
@@ -14,11 +14,11 @@ fun SuiteDsl.paths() = suite("Paths") {
 	}
 
 	test("A segment shouldn't be empty") {
-		shouldThrow<IllegalArgumentException> { Path.Segment("") }
+		checkThrows<IllegalArgumentException> { Path.Segment("") }
 	}
 
 	test("A segment shouldn't contain one of the forbidden characters") {
-		shouldThrow<IllegalArgumentException> { Path.Segment("other/test") }
+		checkThrows<IllegalArgumentException> { Path.Segment("other/test") }
 	}
 
 	test("Valid paths") {
diff --git a/api/src/commonTest/kotlin/TypedTests.kt b/api/src/commonTest/kotlin/TypedTests.kt
index d58baa2..485ca98 100644
--- a/api/src/commonTest/kotlin/TypedTests.kt
+++ b/api/src/commonTest/kotlin/TypedTests.kt
@@ -1,12 +1,9 @@
 package opensavvy.spine.api
 
-import io.kotest.core.spec.style.StringSpec
-import opensavvy.prepared.runner.kotest.preparedSuite
+import opensavvy.prepared.runner.testballoon.preparedSuite
 
-class TypedTests : StringSpec({
-	preparedSuite {
-		paths()
-		parameters()
-		resolvedRouteTests()
-	}
-})
+val TypedTests by preparedSuite {
+	paths()
+	parameters()
+	resolvedRouteTests()
+}
diff --git a/client-arrow/build.gradle.kts b/client-arrow/build.gradle.kts
index b1912ae..24f19a3 100644
--- a/client-arrow/build.gradle.kts
+++ b/client-arrow/build.gradle.kts
@@ -1,6 +1,7 @@
 plugins {
 	alias(opensavvyConventions.plugins.base)
 	alias(opensavvyConventions.plugins.kotlin.library)
+	alias(libsCommon.plugins.testBalloon)
 }
 
 kotlin {
@@ -21,8 +22,9 @@ kotlin {
 	}
 
 	sourceSets.commonTest.dependencies {
-		implementation(libsCommon.opensavvy.prepared.kotest)
+		implementation(libsCommon.opensavvy.prepared.testBalloon)
 		implementation(libsCommon.opensavvy.prepared.arrow)
+		implementation(libsCommon.kotlin.test)
 	}
 
 	sourceSets.all {
diff --git a/client/build.gradle.kts b/client/build.gradle.kts
index 5e8e121..aa11642 100644
--- a/client/build.gradle.kts
+++ b/client/build.gradle.kts
@@ -1,6 +1,7 @@
 plugins {
 	alias(opensavvyConventions.plugins.base)
 	alias(opensavvyConventions.plugins.kotlin.library)
+	alias(libsCommon.plugins.testBalloon)
 }
 
 kotlin {
@@ -22,8 +23,9 @@ kotlin {
 	}
 
 	sourceSets.commonTest.dependencies {
-		implementation(libsCommon.opensavvy.prepared.kotest)
+		implementation(libsCommon.opensavvy.prepared.testBalloon)
 		implementation(libsCommon.opensavvy.prepared.arrow)
+		implementation(libsCommon.kotlin.test)
 	}
 }
 
diff --git a/server-arrow-independent/build.gradle.kts b/server-arrow-independent/build.gradle.kts
index 547559b..d67c811 100644
--- a/server-arrow-independent/build.gradle.kts
+++ b/server-arrow-independent/build.gradle.kts
@@ -2,6 +2,7 @@ plugins {
 	alias(opensavvyConventions.plugins.base)
 	alias(opensavvyConventions.plugins.kotlin.library)
 	alias(libsCommon.plugins.kotlinx.serialization)
+	alias(libsCommon.plugins.testBalloon)
 }
 
 kotlin {
@@ -15,9 +16,10 @@ kotlin {
 	}
 
 	sourceSets.commonTest.dependencies {
-		implementation(libsCommon.opensavvy.prepared.kotest)
+		implementation(libsCommon.opensavvy.prepared.testBalloon)
 		implementation(libsCommon.opensavvy.prepared.arrow)
 		implementation(libsCommon.opensavvy.prepared.ktor)
+		implementation(libsCommon.kotlin.test)
 		implementation(libs.ktor.server.contentNegotiation)
 		implementation(libs.ktor.client.contentNegotiation)
 		implementation(libs.ktor.kotlinxJson)
diff --git a/server-arrow-independent/src/commonTest/kotlin/ServerRaiseTest.kt b/server-arrow-independent/src/commonTest/kotlin/ServerRaiseTest.kt
index 8047b0d..af2dd73 100644
--- a/server-arrow-independent/src/commonTest/kotlin/ServerRaiseTest.kt
+++ b/server-arrow-independent/src/commonTest/kotlin/ServerRaiseTest.kt
@@ -9,11 +9,11 @@ import io.ktor.server.response.*
 import io.ktor.server.routing.*
 import opensavvy.prepared.compat.ktor.preparedClient
 import opensavvy.prepared.compat.ktor.preparedServer
-import opensavvy.prepared.runner.kotest.PreparedSpec
+import opensavvy.prepared.runner.testballoon.preparedSuite
 import io.ktor.client.plugins.contentnegotiation.ContentNegotiation as ClientContentNegotiation
 import io.ktor.server.plugins.contentnegotiation.ContentNegotiation as ServerContentNegotiation
 
-class ServerRaiseTest : PreparedSpec({
+val ServerRaiseTest by preparedSuite {
 
 	val server by preparedServer {
 		install(ServerContentNegotiation) {
@@ -49,4 +49,4 @@ class ServerRaiseTest : PreparedSpec({
 		check(client().put("/product?first=6&second=2").body<Int>() == 12)
 	}
 
-})
+}
diff --git a/server-arrow/build.gradle.kts b/server-arrow/build.gradle.kts
index 187c6e6..90760ab 100644
--- a/server-arrow/build.gradle.kts
+++ b/server-arrow/build.gradle.kts
@@ -2,6 +2,7 @@ plugins {
 	alias(opensavvyConventions.plugins.base)
 	alias(opensavvyConventions.plugins.kotlin.library)
 	alias(libsCommon.plugins.kotlinx.serialization)
+	alias(libsCommon.plugins.testBalloon)
 }
 
 kotlin {
@@ -14,9 +15,10 @@ kotlin {
 	}
 
 	sourceSets.commonTest.dependencies {
-		implementation(libsCommon.opensavvy.prepared.kotest)
+		implementation(libsCommon.opensavvy.prepared.testBalloon)
 		implementation(libsCommon.opensavvy.prepared.arrow)
 		implementation(libsCommon.opensavvy.prepared.ktor)
+		implementation(libsCommon.kotlin.test)
 		implementation(libs.ktor.server.contentNegotiation)
 		implementation(libs.ktor.client.contentNegotiation)
 		implementation(libs.ktor.kotlinxJson)
diff --git a/server/build.gradle.kts b/server/build.gradle.kts
index 345fc33..9b03f60 100644
--- a/server/build.gradle.kts
+++ b/server/build.gradle.kts
@@ -2,6 +2,7 @@ plugins {
 	alias(opensavvyConventions.plugins.base)
 	alias(opensavvyConventions.plugins.kotlin.library)
 	alias(libsCommon.plugins.kotlinx.serialization)
+	alias(libsCommon.plugins.testBalloon)
 }
 
 kotlin {
@@ -16,9 +17,10 @@ kotlin {
 	}
 
 	sourceSets.commonTest.dependencies {
-		implementation(libsCommon.opensavvy.prepared.kotest)
+		implementation(libsCommon.opensavvy.prepared.testBalloon)
 		implementation(libsCommon.opensavvy.prepared.arrow)
 		implementation(libsCommon.opensavvy.prepared.ktor)
+		implementation(libsCommon.kotlin.test)
 		implementation(libs.ktor.server.contentNegotiation)
 		implementation(libs.ktor.client.contentNegotiation)
 		implementation(libs.ktor.kotlinxJson)
diff --git a/server/src/commonTest/kotlin/ServerTests.kt b/server/src/commonTest/kotlin/ServerTests.kt
index 9fd495c..c00d900 100644
--- a/server/src/commonTest/kotlin/ServerTests.kt
+++ b/server/src/commonTest/kotlin/ServerTests.kt
@@ -1,10 +1,7 @@
 package opensavvy.spine.typed.server
 
-import io.kotest.core.spec.style.StringSpec
-import opensavvy.prepared.runner.kotest.preparedSuite
+import opensavvy.prepared.runner.testballoon.preparedSuite
 
-class ServerTests : StringSpec({
-	preparedSuite {
-		routeTest()
-	}
-})
+val ServerTests by preparedSuite {
+	routeTest()
+}