diff --git a/.devcontainer b/.devcontainer
new file mode 160000
index 00000000..9392dab6
--- /dev/null
+++ b/.devcontainer
@@ -0,0 +1 @@
+Subproject commit 9392dab66088da3b820424480218fc88492927c7
diff --git a/.github/workflows/xpbuild.yml b/.github/workflows/xpbuild.yml
new file mode 100644
index 00000000..b9166a83
--- /dev/null
+++ b/.github/workflows/xpbuild.yml
@@ -0,0 +1,30 @@
+name: Build
+on:
+  push:
+    branches: [ "dev" ]
+  pull_request:
+    branches: [ "dev" ]
+  workflow_dispatch:
+jobs:
+  linux:
+    uses: externpro/externpro/.github/workflows/build-linux.yml@25.05.2
+    with:
+      cmake-workflow-preset: LinuxRelease
+      runon: ubuntu-latest
+    secrets: inherit
+  linux-arm64:
+    uses: externpro/externpro/.github/workflows/build-linux.yml@25.05.2
+    with:
+      cmake-workflow-preset: LinuxRelease
+      runon: ubuntu-24.04-arm
+    secrets: inherit
+  macos:
+    uses: externpro/externpro/.github/workflows/build-macos.yml@25.05.2
+    with:
+      cmake-workflow-preset: DarwinRelease
+    secrets: inherit
+  windows:
+    uses: externpro/externpro/.github/workflows/build-windows.yml@25.05.2
+    with:
+      cmake-workflow-preset: WindowsRelease
+    secrets: inherit
diff --git a/.github/workflows/xprelease.yml b/.github/workflows/xprelease.yml
new file mode 100644
index 00000000..273199e9
--- /dev/null
+++ b/.github/workflows/xprelease.yml
@@ -0,0 +1,20 @@
+name: Release
+on:
+  workflow_dispatch:
+    inputs:
+      workflow_run_url:
+        description: 'URL of the workflow run containing artifacts to upload (e.g., https://github.com/owner/repo/actions/runs/123456789)'
+        required: true
+        type: string
+jobs:
+  # Upload build artifacts as release assets
+  release-from-build:
+    uses: externpro/externpro/.github/workflows/release-from-build.yml@25.05.2
+    with:
+      workflow_run_url: ${{ github.event.inputs.workflow_run_url }}
+      artifact_pattern: "*.tar.xz"
+    permissions:
+      contents: write
+      id-token: write
+      attestations: write
+    secrets: inherit
diff --git a/.gitignore b/.gitignore
index d76e398f..382b456a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -70,3 +70,7 @@ x64
 *.log
 *.trs
 .dirstamp
+# externpro
+.env
+_bld*/
+docker-compose.override.yml
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..18932abf
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule ".devcontainer"]
+	path = .devcontainer
+	url = https://github.com/externpro/externpro
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 13e73da9..a302002b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,5 @@
 CMAKE_MINIMUM_REQUIRED(VERSION 2.4...3.31)
+set(CMAKE_PROJECT_TOP_LEVEL_INCLUDES .devcontainer/cmake/xproinc.cmake)
 PROJECT(yasm)
 if (COMMAND cmake_policy)
     cmake_policy(SET CMP0003 NEW)
@@ -6,12 +7,13 @@ endif (COMMAND cmake_policy)
 
 OPTION(BUILD_SHARED_LIBS "Build shared libraries" ON)
 
-# Where to look first for cmake modules
-set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/modules")
+# Where to look for cmake modules
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/modules")
 
 INCLUDE(GNUInstallDirs)
 INCLUDE(YasmMacros)
 INCLUDE(VersionGen)
+INCLUDE(xpflags)
 
 OPTION(ENABLE_NLS "Enable message translations" OFF)
 
@@ -37,22 +39,30 @@ INCLUDE_DIRECTORIES(AFTER ${CMAKE_BINARY_DIR} ${yasm_SOURCE_DIR})
 INCLUDE(ConfigureChecks.cmake)
 
 OPTION(XP_INSTALL_YASM_EXE_ONLY "Only install the yasm executable" OFF)
-IF(XP_INSTALL_YASM_EXE_ONLY)
-  SET(OPT_INSTALL EXCLUDE_FROM_ALL)
-ELSE()
-  SET(OPT_INSTALL)
-ENDIF()
+if(NOT DEFINED XP_INSTALL_CMAKEDIR)
+  set(XP_INSTALL_CMAKEDIR ${CMAKE_INSTALL_DATADIR}/cmake)
+endif()
 SET(targetsFile ${PROJECT_NAME}-targets)
+set(exe ${PROJECT_NAME})
+if(DEFINED XP_NAMESPACE)
+  set(nameSpace NAMESPACE ${XP_NAMESPACE}::)
+  string(PREPEND exe "${XP_NAMESPACE}::")
+endif()
+xpPackageDevel(TARGETS_FILE ${targetsFile} EXE ${exe})
 
 ADD_SUBDIRECTORY(tools)
 ADD_SUBDIRECTORY(libyasm)
 ADD_SUBDIRECTORY(modules)
 ADD_SUBDIRECTORY(frontends)
 
-INSTALL(EXPORT ${targetsFile} DESTINATION ${CMAKE_INSTALL_BINDIR}/cmake ${OPT_INSTALL})
+if(XP_INSTALL_YASM_EXE_ONLY)
+INSTALL(EXPORT ${targetsFile} DESTINATION ${XP_INSTALL_CMAKEDIR} ${nameSpace})
+endif()
 
+if(NOT XP_INSTALL_YASM_EXE_ONLY)
 INSTALL(FILES
     libyasm.h
     ${CMAKE_BINARY_DIR}/libyasm-stdint.h
-    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ${OPT_INSTALL}
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
     )
+endif()
diff --git a/CMakePresets.json b/CMakePresets.json
new file mode 100644
index 00000000..f82cfdd2
--- /dev/null
+++ b/CMakePresets.json
@@ -0,0 +1,8 @@
+{
+  "version": 8,
+  "include": [
+    ".devcontainer/cmake/presets/xpLinuxNinja.json",
+    ".devcontainer/cmake/presets/xpDarwinNinja.json",
+    ".devcontainer/cmake/presets/xpWindowsVs2022.json"
+  ]
+}
diff --git a/CMakePresetsBase.json b/CMakePresetsBase.json
new file mode 100644
index 00000000..24d566db
--- /dev/null
+++ b/CMakePresetsBase.json
@@ -0,0 +1,22 @@
+{
+  "version": 8,
+  "configurePresets": [
+    {
+      "name": "config-base",
+      "hidden": true,
+      "binaryDir": "${sourceDir}/_bld-${presetName}",
+      "cacheVariables": {
+        "BUILD_SHARED_LIBS": "OFF",
+        "CMAKE_BUILD_TYPE": "Release",
+        "XP_INSTALL_YASM_EXE_ONLY": "ON",
+        "XP_NAMESPACE": "xpro"
+      }
+    }
+  ],
+  "buildPresets": [
+    {
+      "name": "build-base",
+      "hidden": true
+    }
+  ]
+}
diff --git a/docker-compose.sh b/docker-compose.sh
new file mode 120000
index 00000000..85f182f0
--- /dev/null
+++ b/docker-compose.sh
@@ -0,0 +1 @@
+.devcontainer/compose.pro.sh
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 120000
index 00000000..46c1f891
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1 @@
+.devcontainer/compose.bld.yml
\ No newline at end of file
diff --git a/frontends/tasm/CMakeLists.txt b/frontends/tasm/CMakeLists.txt
index 3316aa05..e1fa6ec7 100644
--- a/frontends/tasm/CMakeLists.txt
+++ b/frontends/tasm/CMakeLists.txt
@@ -34,4 +34,6 @@ SET_SOURCE_FILES_PROPERTIES(tasm.c PROPERTIES
     OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/license.c
     )
 
-INSTALL(TARGETS ytasm EXPORT ${targetsFile} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} ${OPT_INSTALL})
+if(NOT XP_INSTALL_YASM_EXE_ONLY)
+INSTALL(TARGETS ytasm EXPORT ${targetsFile} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+endif()
diff --git a/frontends/vsyasm/CMakeLists.txt b/frontends/vsyasm/CMakeLists.txt
index fd67f77a..447de727 100644
--- a/frontends/vsyasm/CMakeLists.txt
+++ b/frontends/vsyasm/CMakeLists.txt
@@ -34,4 +34,6 @@ SET_SOURCE_FILES_PROPERTIES(vsyasm.c PROPERTIES
     OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/license.c
     )
 
-INSTALL(TARGETS vsyasm EXPORT ${targetsFile} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} ${OPT_INSTALL})
+if(NOT XP_INSTALL_YASM_EXE_ONLY)
+INSTALL(TARGETS vsyasm EXPORT ${targetsFile} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+endif()
diff --git a/libyasm/CMakeLists.txt b/libyasm/CMakeLists.txt
index cced2057..12054600 100644
--- a/libyasm/CMakeLists.txt
+++ b/libyasm/CMakeLists.txt
@@ -42,13 +42,15 @@ ELSE(BUILD_SHARED_LIBS)
         )
 ENDIF(BUILD_SHARED_LIBS)
 
+if(NOT XP_INSTALL_YASM_EXE_ONLY)
 INSTALL(TARGETS libyasm EXPORT ${targetsFile}
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
     LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
     ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ${OPT_INSTALL}
     )
+endif()
 
+if(NOT XP_INSTALL_YASM_EXE_ONLY)
 INSTALL(FILES
     arch.h
     assocdat.h
@@ -78,5 +80,5 @@ INSTALL(FILES
     valparam.h
     value.h
     DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/libyasm
-    ${OPT_INSTALL}
     )
+endif()
diff --git a/modules/CMakeLists.txt b/modules/CMakeLists.txt
index e3f8eb11..f59989c9 100644
--- a/modules/CMakeLists.txt
+++ b/modules/CMakeLists.txt
@@ -78,8 +78,6 @@ ELSE(regen_init_plugin_c)
     MESSAGE(STATUS "Not regenerating static modules file (unchanged)")
 ENDIF(regen_init_plugin_c)
 
-SET_SOURCE_FILES_PROPERTIES(init_plugin.c GENERATED)
-
 SET(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR})
 
 IF(BUILD_SHARED_LIBS)