diff --git a/.github/workflows/wasm.yml b/.github/workflows/wasm.yml
index 291124f33..43320e8cd 100644
--- a/.github/workflows/wasm.yml
+++ b/.github/workflows/wasm.yml
@@ -69,7 +69,7 @@ jobs:
             echo "This job compiled \`wasmJsMain\` and \`wasmJsTest\`. **No wasm test was executed.**"
             echo
             echo "Running them needs a CPython Emscripten build, which this repository publishes as"
-            echo "\`io.github.thisisthepy:python-multiplatform-wasm-runtime\` (a 7 MB zip built by"
+            echo "\`org.thisisthepy:python-multiplatform-wasm-runtime\` (a 7 MB zip built by"
             echo "\`:python-multiplatform:wasmBrowserRuntimeZip\`) but has never pushed to a remote"
             echo "repository -- it exists only in the maintainer's \`mavenLocal\`."
             echo
diff --git a/README.md b/README.md
index 500f6086e..f126a862d 100644
--- a/README.md
+++ b/README.md
@@ -124,7 +124,7 @@ name, unchanged.
 plugins {
     kotlin("jvm")
     application
-    id("io.github.thisisthepy.python.multiplatform.bindings") version "<version>"
+    id("org.thisisthepy.python.multiplatform.bindings") version "<version>"
 }
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 9a55c8361..63c01e66a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -16,7 +16,7 @@ plugins {
 val publishedVersion = "${property("pythonVersion")}-${property("libraryVersionSuffix")}"
 
 allprojects {
-    group = "io.github.thisisthepy"
+    group = "org.thisisthepy"
     version = publishedVersion
 }
 
diff --git a/docs/SPEC.md b/docs/SPEC.md
index d9a68a5a4..04ba23c5c 100644
--- a/docs/SPEC.md
+++ b/docs/SPEC.md
@@ -54,7 +54,16 @@ fail, then implement.
   into a catchable `IllegalStateException` naming the path and version, instead of CPython's process
   abort. `Status: implemented` on desktop (`PM/desktopTest/.../env/PythonHomeCheckTest.kt`);
   smoke-tested on all targets (`PM/commonTest/.../PythonHomeCheckSmokeTest.kt`).
-- **L-4** Desktop: applying the Gradle plugin `io.github.thisisthepy.python.multiplatform.bindings`
+- **L-0** Coordinates (#95, maintainer decision 2026-10-03, following JetBrains): libraries and the Gradle
+  plugin are published under the Maven group `org.thisisthepy` (`org.thisisthepy:python-multiplatform`,
+  `-ksp`, `-compose`, `-gradle-plugin`; plugin ID `org.thisisthepy.python.multiplatform.bindings`), shipped
+  apps under `io.github.thisisthepy` (the sample's application and bundle ID
+  `io.github.thisisthepy.python.multiplatform.demo`). Kotlin code packages (`python.*`, the sample's
+  `org.thisisthepy.python.multiplatform.demo.*`) do not change. The generated table fragment of a module is
+  named from its Maven group and project path (`deriveModuleName`), so since #95 it is
+  `Fragment_org_thisisthepy_<path>` (before: `Fragment_io_github_thisisthepy_<path>`); discovery scans the
+  whole package, so only the name changed. `Status: implemented`, `GP/PublishedVersionTest.kt`, `GP/WiringTest.kt`.
+- **L-4** Desktop: applying the Gradle plugin `org.thisisthepy.python.multiplatform.bindings`
   registers `stagePythonHome`, which downloads the matching CPython, verifies it against the release
   `SHA256SUMS`, caches it machine-wide and sets `PYTHONHOME` on `run`/`test`. A user-set `PYTHONHOME`
   is never overridden; `pythonBindings { stagePythonHome.set(false) }` disables it.
diff --git a/docs/design/ecosystem.md b/docs/design/ecosystem.md
index 9f9a82e9f..d7d567c98 100644
--- a/docs/design/ecosystem.md
+++ b/docs/design/ecosystem.md
@@ -232,7 +232,7 @@ This section documents the current state, language/build system/distribution art
 - **Language / Build System / Distribution**:
   - Kotlin Multiplatform (Kotlin `2.4.20-Beta2` pinned in `gradle/libs.versions.toml` as of 2026-10-03), Compose Multiplatform 1.11.1 for the sample and fixtures, Java 21, C/C++ FFI.
   - Gradle (`build.gradle.kts`, `settings.gradle.kts`, included build `python-multiplatform-gradle-plugin`).
-  - Maven artifact publication (`id("maven-publish")` in `python-multiplatform/build.gradle.kts`, published under group `io.github.thisisthepy:python-multiplatform`).
+  - Maven artifact publication (`id("maven-publish")` in `python-multiplatform/build.gradle.kts`, published under group `org.thisisthepy:python-multiplatform`).
 - **Goal in Ecosystem**:
   - Core language boundary and binder between Kotlin Multiplatform and CPython.
   - Manages low-level FFI, object reference handles, upcall/downcall function tables, GIL lifecycle, and proxy injection into CPython `sys.modules`.
diff --git a/docs/design/upcall.md b/docs/design/upcall.md
index 761fd17c6..db4eedd11 100644
--- a/docs/design/upcall.md
+++ b/docs/design/upcall.md
@@ -132,8 +132,8 @@ point. Each module emits one **fragment object** into the well-known package
 // GENERATED by python-multiplatform-ksp. Do not edit.
 package python.multiplatform.generated.fragments
 
-object Fragment_io_github_thisisthepy_python_multiplatform_ksp_fixtures_library : python.multiplatform.reflection.FunctionTableFragment {
-    override val moduleName: String = "io_github_thisisthepy_python_multiplatform_ksp_fixtures_library"
+object Fragment_org_thisisthepy_python_multiplatform_ksp_fixtures_library : python.multiplatform.reflection.FunctionTableFragment {
+    override val moduleName: String = "org_thisisthepy_python_multiplatform_ksp_fixtures_library"
     override fun entries(): List<ExposedCallable> = listOf(
         ExposedCallable(name = "fixture.library.greet", arity = 1, paramTypes = listOf(TypeTag.STRING),
             returnType = TypeTag.STRING, paramNames = listOf("name"), callable = { args -> fixture.library.greet(args[0] as String) }),
@@ -148,7 +148,7 @@ object Fragment_io_github_thisisthepy_python_multiplatform_ksp_fixtures_library
 - **Name**: `Fragment_<moduleName>`, where `moduleName` is the KSP option
   `python.multiplatform.moduleName` with `.` and `-` replaced by `_` (`Constants.kt`). The Gradle plugin
   derives it from the **Maven group plus the project path** (`:python-multiplatform-ksp:fixtures:app` with group
-  `io.github.thisisthepy` → `io_github_thisisthepy_python_multiplatform_ksp_fixtures_app`), because fragments from every
+  `org.thisisthepy` → `org_thisisthepy_python_multiplatform_ksp_fixtures_app`), because fragments from every
   artifact share one package and two libraries both called `:core` would otherwise collide. The name is
   not load-bearing for discovery (the whole package is scanned) but prevents collisions.
 - **Visibility: `public`.** An `internal` fragment does not work: `internal` is enforced per Kotlin
@@ -297,7 +297,7 @@ One `SymbolProcessorProvider` (`PythonBindingProcessorProvider.kt`) with two rol
 | `python.multiplatform.excludePackages` | no | comma-separated packages to skip, on top of the always-excluded ones |
 
 **The Gradle plugin is built**: `python-multiplatform-gradle-plugin/`, id
-`io.github.thisisthepy.python.multiplatform.bindings`. Applying it applies KSP, adds the processor to every
+`org.thisisthepy.python.multiplatform.bindings`. Applying it applies KSP, adds the processor to every
 target's **main** KSP configuration (never a `…Test` one and never `kspCommonMainMetadata`, either of which
 would emit a second fragment under the same name), infers the role (`application` /
 `com.android.application` → `app`, else `library`; override with `pythonBindings { role.set("app") }`) and
diff --git a/docs/guide/guide-binding-libraries.html b/docs/guide/guide-binding-libraries.html
index 31378973a..b31891963 100644
--- a/docs/guide/guide-binding-libraries.html
+++ b/docs/guide/guide-binding-libraries.html
@@ -39,7 +39,7 @@ <h1><span data-lang="en">Bind a prebuilt library</span><span data-lang="ko">빌
 <main><div class="wrap"><div class="prose">
   <h2><span class="num">01</span><span data-lang="en">Apply the plugin</span><span data-lang="ko">플러그인 적용</span></h2>
   <pre translate="no"><code class="language-kotlin">plugins {
-    id(&quot;io.github.thisisthepy.python.multiplatform.bindings&quot;) version &quot;&lt;version&gt;&quot;
+    id(&quot;org.thisisthepy.python.multiplatform.bindings&quot;) version &quot;&lt;version&gt;&quot;
 }</code></pre>
   <p><span data-lang="en">The walker reads Kotlin metadata with ASM, generates Kotlin source for every reachable declaration, and lets <code>kotlinc</code> compile it. It never looks up JVM methods by name: value-class name mangling makes that impossible in principle.</span><span data-lang="ko">워커는 ASM 으로 Kotlin 메타데이터를 읽고, 닿을 수 있는 모든 선언에 대해 Kotlin 소스를 생성해 <code>kotlinc</code> 가 컴파일하게 한다. JVM 메서드를 이름으로 찾지 않는다. 값 클래스 이름 맹글링 때문에 그것은 원리적으로 불가능하다.</span></p>
   <h2><span class="num">02</span><span data-lang="en">What you get</span><span data-lang="ko">얻는 것</span></h2>
diff --git a/docs/locale/README_ko.md b/docs/locale/README_ko.md
index 2627bfaa4..fe74fad20 100644
--- a/docs/locale/README_ko.md
+++ b/docs/locale/README_ko.md
@@ -123,7 +123,7 @@ async def main():
 plugins {
     kotlin("jvm")
     application
-    id("io.github.thisisthepy.python.multiplatform.bindings") version "<version>"
+    id("org.thisisthepy.python.multiplatform.bindings") version "<version>"
 }
 ```
 
diff --git a/docs/platforms/ios-app-bundle.md b/docs/platforms/ios-app-bundle.md
index 7d605b0f5..d58274285 100644
--- a/docs/platforms/ios-app-bundle.md
+++ b/docs/platforms/ios-app-bundle.md
@@ -12,7 +12,7 @@ prefix and payload, why, and how to check it.
 ## What happens
 
 **Gradle** (the bindings plugin, `IosConsumerWiring.kt`; rules in `IosPythonHomeLayout`). The app module
-applies `io.github.thisisthepy.python.multiplatform.bindings`, which registers one task per slice,
+applies `org.thisisthepy.python.multiplatform.bindings`, which registers one task per slice,
 `stageIosPythonHome_<sdk>_<arch>` (`iphoneos_arm64`, `iphonesimulator_arm64`, `iphonesimulator_x86_64`),
 and writes `<module>/build/python-ios-home/<sdk>-<arch>/` (for the sample, `sample/build/python-ios-home/...`):
 
@@ -92,7 +92,7 @@ before. `PyConfig.home` is the non-deprecated route, but the library carries no
 ## Wiring an app
 
 The sample's project is `sample/src/iosMain/app.xcodeproj` (target `app`, product `PythonDemo.app`, bundle id
-`org.thisisthepy.python.multiplatform.demo`). Its phase:
+`io.github.thisisthepy.python.multiplatform.demo`). Its phase:
 
 ```sh
 set -e
@@ -165,10 +165,10 @@ codesign --verify --deep --strict "$APP" && echo SIGNED_OK
 # 3. Install and launch with no SIMCTL_CHILD_* variable
 UDID=$(xcrun simctl list devices booted | grep -oE '[0-9A-F-]{36}' | head -n 1); echo "$UDID"
 env | grep '^SIMCTL_CHILD_' && echo "unset these first"     # must print nothing
-xcrun simctl uninstall "$UDID" org.thisisthepy.python.multiplatform.demo
+xcrun simctl uninstall "$UDID" io.github.thisisthepy.python.multiplatform.demo
 xcrun simctl install "$UDID" "$APP"
 xcrun simctl launch --console-pty --terminate-running-process "$UDID" \
-    org.thisisthepy.python.multiplatform.demo > .tmp/launch.log 2>&1 &
+    io.github.thisisthepy.python.multiplatform.demo > .tmp/launch.log 2>&1 &
 LAUNCH=$!
 # wait for the DEMO block (Monitor/until-loop; no sleep in this shell), then:
 kill "$LAUNCH"
diff --git a/python-multiplatform-compose/fixtures/compose/build.gradle.kts b/python-multiplatform-compose/fixtures/compose/build.gradle.kts
index 95aeb900a..40470cf26 100644
--- a/python-multiplatform-compose/fixtures/compose/build.gradle.kts
+++ b/python-multiplatform-compose/fixtures/compose/build.gradle.kts
@@ -26,7 +26,7 @@ plugins {
     alias(libs.plugins.kotlin.multiplatform)
     alias(libs.plugins.jetpack.compose)
     alias(libs.plugins.compose.compiler)
-    id("io.github.thisisthepy.python.multiplatform.bindings")
+    id("org.thisisthepy.python.multiplatform.bindings")
 }
 
 kotlin {
diff --git a/python-multiplatform-compose/fixtures/notebook-e2e/build.gradle.kts b/python-multiplatform-compose/fixtures/notebook-e2e/build.gradle.kts
index 4f267ccb9..8c4915a86 100644
--- a/python-multiplatform-compose/fixtures/notebook-e2e/build.gradle.kts
+++ b/python-multiplatform-compose/fixtures/notebook-e2e/build.gradle.kts
@@ -33,7 +33,7 @@ plugins {
     alias(libs.plugins.kotlin.multiplatform)
     alias(libs.plugins.jetpack.compose)
     alias(libs.plugins.compose.compiler)
-    id("io.github.thisisthepy.python.multiplatform.bindings")
+    id("org.thisisthepy.python.multiplatform.bindings")
 }
 
 kotlin {
diff --git a/python-multiplatform-gradle-plugin/build.gradle.kts b/python-multiplatform-gradle-plugin/build.gradle.kts
index 6950ecdfa..3ec90edad 100644
--- a/python-multiplatform-gradle-plugin/build.gradle.kts
+++ b/python-multiplatform-gradle-plugin/build.gradle.kts
@@ -7,7 +7,7 @@ plugins {
     `maven-publish`
 }
 
-group = "io.github.thisisthepy"
+group = "org.thisisthepy"
 // Same published version as the library and the KSP processor (#70): "$pythonVersion-$suffix" from
 // the root's gradle.properties, a -P override winning as it does in the root build (Gradle hands
 // start-parameter properties to included builds too).
@@ -221,7 +221,7 @@ dependencies {
 gradlePlugin {
     plugins {
         create("pythonMultiplatformBindings") {
-            id = "io.github.thisisthepy.python.multiplatform.bindings"
+            id = "org.thisisthepy.python.multiplatform.bindings"
             implementationClass = "python.multiplatform.gradle.PythonBindingsPlugin"
             displayName = "Python Multiplatform bindings"
             description = "Wires the python-multiplatform KSP processor into every Kotlin target of a module."
diff --git a/python-multiplatform-gradle-plugin/fixtures/artifact/build.gradle.kts b/python-multiplatform-gradle-plugin/fixtures/artifact/build.gradle.kts
index b65538238..cfdd5fd0e 100644
--- a/python-multiplatform-gradle-plugin/fixtures/artifact/build.gradle.kts
+++ b/python-multiplatform-gradle-plugin/fixtures/artifact/build.gradle.kts
@@ -18,7 +18,7 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget
  */
 plugins {
     alias(libs.plugins.kotlin.multiplatform)
-    id("io.github.thisisthepy.python.multiplatform.bindings")
+    id("org.thisisthepy.python.multiplatform.bindings")
 }
 
 kotlin {
diff --git a/python-multiplatform-gradle-plugin/fixtures/ios-consumer/build.gradle.kts b/python-multiplatform-gradle-plugin/fixtures/ios-consumer/build.gradle.kts
index 5bd004df2..0ecf0f929 100644
--- a/python-multiplatform-gradle-plugin/fixtures/ios-consumer/build.gradle.kts
+++ b/python-multiplatform-gradle-plugin/fixtures/ios-consumer/build.gradle.kts
@@ -3,7 +3,7 @@
  * `:python-multiplatform`.
  *
  * This module declares no `downloadPython_ios`, no linker option and no Xcode script of its own. All
- * of it comes from `io.github.thisisthepy.python.multiplatform.bindings`:
+ * of it comes from `org.thisisthepy.python.multiplatform.bindings`:
  *
  *  - `downloadPython_ios` and `preparePythonXcframework` (into this module's `build/`),
  *  - `-framework Python -F...` on the two `Probe` framework binaries below,
@@ -14,7 +14,7 @@
  */
 plugins {
     alias(libs.plugins.kotlin.multiplatform)
-    id("io.github.thisisthepy.python.multiplatform.bindings")
+    id("org.thisisthepy.python.multiplatform.bindings")
 }
 
 kotlin {
diff --git a/python-multiplatform-gradle-plugin/fixtures/klib-artifact/build.gradle.kts b/python-multiplatform-gradle-plugin/fixtures/klib-artifact/build.gradle.kts
index 7e8a8f00a..a5d1c44db 100644
--- a/python-multiplatform-gradle-plugin/fixtures/klib-artifact/build.gradle.kts
+++ b/python-multiplatform-gradle-plugin/fixtures/klib-artifact/build.gradle.kts
@@ -36,7 +36,7 @@
  */
 plugins {
     alias(libs.plugins.kotlin.multiplatform)
-    id("io.github.thisisthepy.python.multiplatform.bindings")
+    id("org.thisisthepy.python.multiplatform.bindings")
 }
 
 val pythonDownloadDir = project(":python-multiplatform").layout.buildDirectory.dir("python-standalone").get().asFile
diff --git a/python-multiplatform-gradle-plugin/src/main/kotlin/python/multiplatform/gradle/PythonBindingsPlugin.kt b/python-multiplatform-gradle-plugin/src/main/kotlin/python/multiplatform/gradle/PythonBindingsPlugin.kt
index 8c6e962d5..823db419d 100644
--- a/python-multiplatform-gradle-plugin/src/main/kotlin/python/multiplatform/gradle/PythonBindingsPlugin.kt
+++ b/python-multiplatform-gradle-plugin/src/main/kotlin/python/multiplatform/gradle/PythonBindingsPlugin.kt
@@ -249,7 +249,7 @@ interface PythonBindingsExtension {
  * target, is now one plugin.
  *
  *     plugins {
- *         id("io.github.thisisthepy.python.multiplatform.bindings")
+ *         id("org.thisisthepy.python.multiplatform.bindings")
  *     }
  *
  * A module that produces the final binary adds `pythonBindings { role.set("app") }` unless it
diff --git a/python-multiplatform-gradle-plugin/src/test/kotlin/python/multiplatform/gradle/PublishedVersionTest.kt b/python-multiplatform-gradle-plugin/src/test/kotlin/python/multiplatform/gradle/PublishedVersionTest.kt
index 52f55eede..cff7e082c 100644
--- a/python-multiplatform-gradle-plugin/src/test/kotlin/python/multiplatform/gradle/PublishedVersionTest.kt
+++ b/python-multiplatform-gradle-plugin/src/test/kotlin/python/multiplatform/gradle/PublishedVersionTest.kt
@@ -22,7 +22,7 @@ class PublishedVersionTest {
     @Test
     fun theProcessorCoordinateCarriesTheLibraryVersion() {
         assertEquals(
-            "io.github.thisisthepy:python-multiplatform-ksp:$expected",
+            "org.thisisthepy:python-multiplatform-ksp:$expected",
             DEFAULT_PROCESSOR_COORDINATES,
         )
     }
@@ -30,7 +30,7 @@ class PublishedVersionTest {
     @Test
     fun theWasmRuntimeCoordinateCarriesTheLibraryVersion() {
         assertEquals(
-            "io.github.thisisthepy:python-multiplatform-wasm-runtime:$expected",
+            "org.thisisthepy:python-multiplatform-wasm-runtime:$expected",
             DEFAULT_WASM_RUNTIME_COORDINATES,
         )
     }
diff --git a/python-multiplatform-gradle-plugin/src/test/kotlin/python/multiplatform/gradle/WiringTest.kt b/python-multiplatform-gradle-plugin/src/test/kotlin/python/multiplatform/gradle/WiringTest.kt
index 30710976d..b791b3fcb 100644
--- a/python-multiplatform-gradle-plugin/src/test/kotlin/python/multiplatform/gradle/WiringTest.kt
+++ b/python-multiplatform-gradle-plugin/src/test/kotlin/python/multiplatform/gradle/WiringTest.kt
@@ -147,8 +147,8 @@ class WiringTest {
         // Two independent libraries both called `:core` would otherwise both emit
         // `python.multiplatform.generated.fragments.Fragment_core` and collide on one classpath.
         assertEquals(
-            "io_github_thisisthepy_python_multiplatform_ksp_fixtures_app",
-            deriveModuleName(group = "io.github.thisisthepy", path = ":python-multiplatform-ksp:fixtures:app", name = "app"),
+            "org_thisisthepy_python_multiplatform_ksp_fixtures_app",
+            deriveModuleName(group = "org.thisisthepy", path = ":python-multiplatform-ksp:fixtures:app", name = "app"),
         )
         assertEquals(
             "com_example_core",
diff --git a/python-multiplatform-ksp/fixtures/android/build.gradle.kts b/python-multiplatform-ksp/fixtures/android/build.gradle.kts
index 61eb70d21..bbaa5b7bf 100644
--- a/python-multiplatform-ksp/fixtures/android/build.gradle.kts
+++ b/python-multiplatform-ksp/fixtures/android/build.gradle.kts
@@ -4,7 +4,7 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 /**
  * The fixture that carries an Android plugin.
  *
- * ROADMAP §13: `id("io.github.thisisthepy.python.multiplatform.bindings")` applies
+ * ROADMAP §13: `id("org.thisisthepy.python.multiplatform.bindings")` applies
  * `com.google.devtools.ksp`, and KSP declares `MINIMUM_SUPPORTED_AGP_VERSION`. Below that AGP the
  * plugin dies at configuration time with
  *
@@ -24,7 +24,7 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 plugins {
     alias(libs.plugins.kotlin.multiplatform)
     alias(libs.plugins.android.library)
-    id("io.github.thisisthepy.python.multiplatform.bindings")
+    id("org.thisisthepy.python.multiplatform.bindings")
 }
 
 kotlin {
diff --git a/python-multiplatform-ksp/fixtures/android/src/androidInstrumentedTest/kotlin/fixture/android/GeneratedAndroidTableTest.kt b/python-multiplatform-ksp/fixtures/android/src/androidInstrumentedTest/kotlin/fixture/android/GeneratedAndroidTableTest.kt
index fa4e90300..3303ba775 100644
--- a/python-multiplatform-ksp/fixtures/android/src/androidInstrumentedTest/kotlin/fixture/android/GeneratedAndroidTableTest.kt
+++ b/python-multiplatform-ksp/fixtures/android/src/androidInstrumentedTest/kotlin/fixture/android/GeneratedAndroidTableTest.kt
@@ -31,7 +31,7 @@ class GeneratedAndroidTableTest {
 
     @Test
     fun theAndroidModulesFragmentIsInTheAggregatedTable() {
-        assertEquals(setOf("io_github_thisisthepy_python_multiplatform_ksp_fixtures_android"), UpcallTable.moduleNames)
+        assertEquals(setOf("org_thisisthepy_python_multiplatform_ksp_fixtures_android"), UpcallTable.moduleNames)
         assertTrue(UpcallTable.resolve("fixture.android.androidDouble").isValid)
     }
 
@@ -115,7 +115,7 @@ class GeneratedAndroidTableTest {
         val count = installAndCountEntries()
 
         assertTrue(count > 0)
-        assertEquals(setOf("io_github_thisisthepy_python_multiplatform_ksp_fixtures_android"), UpcallTable.moduleNames)
+        assertEquals(setOf("org_thisisthepy_python_multiplatform_ksp_fixtures_android"), UpcallTable.moduleNames)
         assertTrue(UpcallTable.resolve("fixture.android.androidDouble").isValid)
         assertFalse(
             UpcallTable.resolve("fixture.android.installGeneratedUpcallTable").isValid,
diff --git a/python-multiplatform-ksp/fixtures/android/src/androidUnitTest/kotlin/fixture/android/GeneratedAndroidTableTest.kt b/python-multiplatform-ksp/fixtures/android/src/androidUnitTest/kotlin/fixture/android/GeneratedAndroidTableTest.kt
index 3876b6492..807cd3ec6 100644
--- a/python-multiplatform-ksp/fixtures/android/src/androidUnitTest/kotlin/fixture/android/GeneratedAndroidTableTest.kt
+++ b/python-multiplatform-ksp/fixtures/android/src/androidUnitTest/kotlin/fixture/android/GeneratedAndroidTableTest.kt
@@ -44,7 +44,7 @@ class GeneratedAndroidTableTest {
         // The name the gradle plugin derives from this module's group and path. Its presence is
         // what says KSP ran here at all -- the state ROADMAP §13 describes has no fragment
         // because the build never got past configuration.
-        assertEquals(setOf("io_github_thisisthepy_python_multiplatform_ksp_fixtures_android"), UpcallTable.moduleNames)
+        assertEquals(setOf("org_thisisthepy_python_multiplatform_ksp_fixtures_android"), UpcallTable.moduleNames)
         assertTrue(UpcallTable.resolve("fixture.android.androidDouble").isValid)
     }
 
@@ -132,7 +132,7 @@ class GeneratedAndroidTableTest {
         val count = installAndCountEntries()
 
         assertTrue(count > 0)
-        assertEquals(setOf("io_github_thisisthepy_python_multiplatform_ksp_fixtures_android"), UpcallTable.moduleNames)
+        assertEquals(setOf("org_thisisthepy_python_multiplatform_ksp_fixtures_android"), UpcallTable.moduleNames)
         assertTrue(UpcallTable.resolve("fixture.android.androidDouble").isValid)
         assertFalse(
             UpcallTable.resolve("fixture.android.installGeneratedUpcallTable").isValid,
diff --git a/python-multiplatform-ksp/fixtures/app/build.gradle.kts b/python-multiplatform-ksp/fixtures/app/build.gradle.kts
index 8404411cd..57ec527d8 100644
--- a/python-multiplatform-ksp/fixtures/app/build.gradle.kts
+++ b/python-multiplatform-ksp/fixtures/app/build.gradle.kts
@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 
 plugins {
     alias(libs.plugins.kotlin.multiplatform)
-    id("io.github.thisisthepy.python.multiplatform.bindings")
+    id("org.thisisthepy.python.multiplatform.bindings")
 }
 
 kotlin {
diff --git a/python-multiplatform-ksp/fixtures/app/src/desktopTest/kotlin/fixture/app/CommonInstallTest.kt b/python-multiplatform-ksp/fixtures/app/src/desktopTest/kotlin/fixture/app/CommonInstallTest.kt
index e30de7b5b..2f7667f5b 100644
--- a/python-multiplatform-ksp/fixtures/app/src/desktopTest/kotlin/fixture/app/CommonInstallTest.kt
+++ b/python-multiplatform-ksp/fixtures/app/src/desktopTest/kotlin/fixture/app/CommonInstallTest.kt
@@ -38,7 +38,7 @@ class CommonInstallTest {
 
         assertTrue(UpcallTable.callableCount > 0, "commonMain installed nothing: $summary")
         assertEquals(
-            setOf("io_github_thisisthepy_python_multiplatform_ksp_fixtures_library", "io_github_thisisthepy_python_multiplatform_ksp_fixtures_app"),
+            setOf("org_thisisthepy_python_multiplatform_ksp_fixtures_library", "org_thisisthepy_python_multiplatform_ksp_fixtures_app"),
             UpcallTable.moduleNames,
             "the seam must install the same aggregate FunctionTable.fragments does",
         )
diff --git a/python-multiplatform-ksp/fixtures/app/src/desktopTest/kotlin/fixture/app/GeneratedTableTest.kt b/python-multiplatform-ksp/fixtures/app/src/desktopTest/kotlin/fixture/app/GeneratedTableTest.kt
index b3ec843dd..625ec9c67 100644
--- a/python-multiplatform-ksp/fixtures/app/src/desktopTest/kotlin/fixture/app/GeneratedTableTest.kt
+++ b/python-multiplatform-ksp/fixtures/app/src/desktopTest/kotlin/fixture/app/GeneratedTableTest.kt
@@ -46,7 +46,7 @@ class GeneratedTableTest {
         // group and path -- neither fixture states a module name any more, and the group is in
         // there because every fragment object in every artifact shares one package.
         assertEquals(
-            setOf("io_github_thisisthepy_python_multiplatform_ksp_fixtures_library", "io_github_thisisthepy_python_multiplatform_ksp_fixtures_app"),
+            setOf("org_thisisthepy_python_multiplatform_ksp_fixtures_library", "org_thisisthepy_python_multiplatform_ksp_fixtures_app"),
             UpcallTable.moduleNames,
         )
         assertTrue(UpcallTable.resolve("fixture.library.add").isValid)
diff --git a/python-multiplatform-ksp/fixtures/library/build.gradle.kts b/python-multiplatform-ksp/fixtures/library/build.gradle.kts
index 417ec00b7..088e93943 100644
--- a/python-multiplatform-ksp/fixtures/library/build.gradle.kts
+++ b/python-multiplatform-ksp/fixtures/library/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
     // One line in place of the KSP plugin, two per-target `add("ksp<Target>", ...)` lines and a
     // `ksp { arg(...) }` block. The role defaults to `library`; the module name is derived from
     // the project's group and path.
-    id("io.github.thisisthepy.python.multiplatform.bindings")
+    id("org.thisisthepy.python.multiplatform.bindings")
 }
 
 kotlin {
diff --git a/python-multiplatform/build.gradle.kts b/python-multiplatform/build.gradle.kts
index 01af94e99..46e46c00b 100644
--- a/python-multiplatform/build.gradle.kts
+++ b/python-multiplatform/build.gradle.kts
@@ -54,7 +54,7 @@ fun deleteWithoutFollowingLinks(path: File) {
 plugins {
     alias(libs.plugins.kotlin.multiplatform)
     alias(libs.plugins.android.library)
-    id("io.github.thisisthepy.python.multiplatform.bindings") apply false
+    id("org.thisisthepy.python.multiplatform.bindings") apply false
     id("com.codingfeline.buildkonfig").version("0.15.2")
     //id("org.jetbrains.dokka")
     id("maven-publish")
@@ -1174,7 +1174,7 @@ kotlin {
         // was not fine for the CPython libraries, hence the name guard below.
         //
         // `allMetadataJar` is the artifact published at the root coordinate
-        // `io.github.thisisthepy:python-multiplatform`, which is what every Kotlin Multiplatform
+        // `org.thisisthepy:python-multiplatform`, which is what every Kotlin Multiplatform
         // consumer resolves in order to compile against `commonMain`. Measured on the mavenLocal
         // publication while enabling the Android one (§15d): **87.4 MB, of which 83.0 MB was four
         // host platforms' libpython** (`lib/linux-x86_64` alone 64.7 MB compressed, 240 MB raw)
@@ -2042,7 +2042,7 @@ val requireWasmRuntime: Boolean =
 fun Task.wasmRuntimePresent(marker: File): Boolean {
     if (marker.isFile) return true
     val remedy = "Unpack the published runtime " +
-        "(io.github.thisisthepy:python-multiplatform-wasm-runtime:$libraryVersion) and point " +
+        "(org.thisisthepy:python-multiplatform-wasm-runtime:$libraryVersion) and point " +
         "-PwasmPythonDir / PMP_PYTHON_DIR at it, or build one into the default location with " +
         "./gradlew :python-multiplatform:buildWasmPython (python-multiplatform/scripts/wasm/build-cpython.sh)."
     val what = "$name: no CPython Emscripten build at ${marker.parentFile} " +
@@ -2150,7 +2150,7 @@ val stageWasmBrowserRuntime by tasks.registering {
 // ROADMAP §10 -- the other half of "the wiring is not in python-multiplatform-gradle-plugin". The
 // plugin cannot hand a consumer a directory that only exists on this machine; it can only resolve a
 // Maven coordinate. So `stageWasmBrowserRuntime`'s output is zipped and published under its own
-// artifact ID, at this library's own version, so `implementation("io.github.thisisthepy:
+// artifact ID, at this library's own version, so `implementation("org.thisisthepy:
 // python-multiplatform:$version")` and the runtime it needs stay paired by construction -- there is
 // no second version string for a consumer to get out of step.
 //
@@ -2727,7 +2727,7 @@ publishing {
         // version, and a consumer who never builds a browser bundle should not need to resolve it
         // as a side effect of resolving the library at all.
         create<MavenPublication>("wasmRuntime") {
-            groupId = "io.github.thisisthepy"
+            groupId = "org.thisisthepy"
             artifactId = "python-multiplatform-wasm-runtime"
             version = libraryVersion
             artifact(wasmBrowserRuntimeZip)
diff --git a/sample/build.gradle.kts b/sample/build.gradle.kts
index 3597caa42..2e8a35dcd 100644
--- a/sample/build.gradle.kts
+++ b/sample/build.gradle.kts
@@ -31,7 +31,7 @@ plugins {
     //
     // `python-multiplatform-ksp/fixtures/android` is the regression test. It is the first fixture to apply an Android
     // plugin, which is exactly why nothing caught this.
-    id("io.github.thisisthepy.python.multiplatform.bindings")
+    id("org.thisisthepy.python.multiplatform.bindings")
 }
 
 kotlin {
@@ -248,11 +248,11 @@ tasks.withType<org.jetbrains.kotlin.gradle.targets.js.webpack.KotlinWebpack>().c
 }
 
 android {
-    namespace = "org.thisisthepy.python.multiplatform.demo"
+    namespace = "io.github.thisisthepy.python.multiplatform.demo"
     compileSdk = libs.versions.android.compileSdk.get().toInt()
 
     defaultConfig {
-        applicationId = "org.thisisthepy.python.multiplatform.demo"
+        applicationId = "io.github.thisisthepy.python.multiplatform.demo"
         minSdk = libs.versions.android.minSdk.get().toInt()
         targetSdk = libs.versions.android.targetSdk.get().toInt()
         versionCode = 1
@@ -303,7 +303,7 @@ compose.desktop {
 
         nativeDistributions {
             targetFormats(TargetFormat.Dmg, TargetFormat.Msi, TargetFormat.Deb)
-            packageName = "org.thisisthepy.python.multiplatform.demo"
+            packageName = "io.github.thisisthepy.python.multiplatform.demo"
             packageVersion = "1.0.0"
         }
     }
diff --git a/sample/src/commonMain/kotlin/org/thisisthepy/python/multiplatform/demo/bindings/ExposedToPython.kt b/sample/src/commonMain/kotlin/org/thisisthepy/python/multiplatform/demo/bindings/ExposedToPython.kt
index 7a2dca366..24eda1d9a 100644
--- a/sample/src/commonMain/kotlin/org/thisisthepy/python/multiplatform/demo/bindings/ExposedToPython.kt
+++ b/sample/src/commonMain/kotlin/org/thisisthepy/python/multiplatform/demo/bindings/ExposedToPython.kt
@@ -8,7 +8,7 @@ import kotlin.coroutines.suspendCoroutine
  * The Kotlin surface this app offers to Python.
  *
  * **Nothing here is registered by hand.** This module applies
- * `id("io.github.thisisthepy.python.multiplatform.bindings")`, which runs `python-multiplatform-ksp`
+ * `id("org.thisisthepy.python.multiplatform.bindings")`, which runs `python-multiplatform-ksp`
  * over these sources at build time; every public declaration it finds becomes an entry in the
  * generated `python.multiplatform.generated.FunctionTable`, which [installGeneratedUpcallTable]
  * hands to [python.multiplatform.reflection.UpcallTable]. Exposure is a blacklist (ROADMAP §7,
diff --git a/sample/src/iosMain/app.xcodeproj/project.pbxproj b/sample/src/iosMain/app.xcodeproj/project.pbxproj
index 0961ac687..5c80959a7 100644
--- a/sample/src/iosMain/app.xcodeproj/project.pbxproj
+++ b/sample/src/iosMain/app.xcodeproj/project.pbxproj
@@ -459,7 +459,7 @@
 					"-framework",
 					Demo,
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = org.thisisthepy.python.multiplatform.demo;
+				PRODUCT_BUNDLE_IDENTIFIER = io.github.thisisthepy.python.multiplatform.demo;
 				PRODUCT_NAME = PythonDemo;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_VERSION = 5.0;
@@ -494,7 +494,7 @@
 					"-framework",
 					Demo,
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = org.thisisthepy.python.multiplatform.demo;
+				PRODUCT_BUNDLE_IDENTIFIER = io.github.thisisthepy.python.multiplatform.demo;
 				PRODUCT_NAME = PythonDemo;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
diff --git a/settings.gradle.kts b/settings.gradle.kts
index c7696ebe4..165f63cfd 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -3,7 +3,7 @@ enableFeaturePreview("TYPESAFE_PROJECT_ACCESSORS")
 pluginManagement {
     // The convenience plugin of ROADMAP §7 lives in its own build so that an outside consumer
     // resolves it by id like any other plugin. Including it here is what makes
-    // `id("io.github.thisisthepy.python.multiplatform.bindings")` resolve inside this repo.
+    // `id("org.thisisthepy.python.multiplatform.bindings")` resolve inside this repo.
     includeBuild("python-multiplatform-gradle-plugin")
 
     repositories {