diff --git a/selfie-runner-junit5/src/main/kotlin/com/diffplug/selfie/alternative_api/Jest.kt b/selfie-runner-junit5/src/main/kotlin/com/diffplug/selfie/alternative_api/Jest.kt
deleted file mode 100644
index 25f2f236..00000000
--- a/selfie-runner-junit5/src/main/kotlin/com/diffplug/selfie/alternative_api/Jest.kt
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (C) 2023 DiffPlug
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.diffplug.selfie.alternative_api
-
-import com.diffplug.selfie.Snapshot
-import com.diffplug.selfie.Snapshotter
-fun preserveScenarios(vararg names: String): Unit = TODO()
-
-class Expect(private val actual: Snapshot) {
-  fun toMatchLiteral(actual: String): String = TODO()
-  fun toMatchSnapshot(scenario: String = ""): String = TODO()
-}
-fun expect(actual: String) = Expect(Snapshot.of(actual))
-fun <T> expect(actual: T, snapshotter: Snapshotter<T>) = Expect(snapshotter.snapshot(actual))
-
-class BinaryExpect(private val actual: ByteArray) {
-  fun toMatchSnapshot(scenario: String = ""): ByteArray = TODO()
-}
-fun expect(actual: ByteArray) = BinaryExpect(actual)
-
-class IntExpect(private val actual: Int) {
-  fun toMatchLiteral(expected: Int): Int = TODO()
-}
-fun expect(actual: Int) = IntExpect(actual)
-
-class LongExpect(private val actual: Long) {
-  fun toMatchLiteral(expected: Long): Long = TODO()
-}
-fun expect(actual: Long) = LongExpect(actual)
-
-class BooleanExpect(private val actual: Boolean) {
-  fun toMatchLiteral(expected: Boolean): Boolean = TODO()
-}
-fun expect(actual: Boolean) = BooleanExpect(actual)
diff --git a/selfie-runner-junit5/src/main/kotlin/com/diffplug/selfie/alternative_api/OriginEnergy.kt b/selfie-runner-junit5/src/main/kotlin/com/diffplug/selfie/alternative_api/OriginEnergy.kt
deleted file mode 100644
index b495717c..00000000
--- a/selfie-runner-junit5/src/main/kotlin/com/diffplug/selfie/alternative_api/OriginEnergy.kt
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2023 DiffPlug
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.diffplug.selfie.alternative_api
-
-import com.diffplug.selfie.Snapshot
-import com.diffplug.selfie.Snapshotter
-
-interface ExpectSnapshot {
-  /** Creates a sub-snapshot, which can be used to group related snapshots together. */
-  fun scenario(name: String): ExpectSnapshot
-
-  /**
-   * Selfie prunes snapshots which are no longer used. If there are some that you want to preserve,
-   * perhaps because a single test has different behavior in different environments, then this
-   * method will prevent a snapshot from being removed.
-   */
-  fun preserveScenarios(vararg names: String)
-  fun toMatchSnapshotBinary(content: ByteArray): ByteArray
-  fun toMatchSnapshot(content: Any): String
-  fun <T> toMatchSnapshot(content: T, snapshotter: Snapshotter<T>): Snapshot
-}
-
-interface ExpectLiteral {
-  fun toMatchLiteral(content: Int, actual: Int): Int
-  fun toMatchLiteral(content: Long, actual: Long): Long
-  fun toMatchLiteral(content: Boolean, actual: Boolean): Boolean
-  fun toMatchLiteral(content: Any, actual: String): String
-}