diff --git a/CMakeLists.txt b/CMakeLists.txt
index cd72f2f..378d848 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,6 +7,9 @@ project(docpp VERSION 0.0.1
     LANGUAGES CXX
 )
 
+include(GNUInstallDirs)
+include(CMakePackageConfigHelpers)
+
 if (NOT DEFINED CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Debug)
 endif()
@@ -37,15 +40,12 @@ set_target_properties(${PROJECT_NAME} PROPERTIES
 install(TARGETS ${PROJECT_NAME}
     EXPORT ${PROJECT_NAME}Targets
     FILE_SET HEADERS
-    LIBRARY DESTINATION lib
-    ARCHIVE DESTINATION lib
-    RUNTIME DESTINATION bin
-    PUBLIC_HEADER DESTINATION include/docpp
-    INCLUDES DESTINATION include)
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/docpp
+    INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 
-set(INCLUDE_INSTALL_DIR include/)
-
-include(CMakePackageConfigHelpers)
 write_basic_package_version_file(
     "${PROJECT_NAME}ConfigVersion.cmake"
     VERSION ${PROJECT_VERSION}
@@ -54,11 +54,11 @@ write_basic_package_version_file(
 install(EXPORT ${PROJECT_NAME}Targets
     FILE ${PROJECT_NAME}Targets.cmake
     NAMESPACE docpp::
-    DESTINATION lib/cmake/${PROJECT_NAME})
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
 
 install(FILES "${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}Config.cmake"
     "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
-    DESTINATION lib/cmake/${PROJECT_NAME})
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
 
 if (NOT WIN32 AND NOT APPLE)
     configure_file(${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}.pc.in
@@ -66,9 +66,7 @@ if (NOT WIN32 AND NOT APPLE)
     )
 
     install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc
-        DESTINATION lib/pkgconfig)
-    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc
-        DESTINATION lib64/pkgconfig)
+        DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
 endif()
 
 if (CMAKE_BUILD_TYPE STREQUAL "Debug")
@@ -103,19 +101,14 @@ if (CMAKE_BUILD_TYPE STREQUAL "Debug")
 endif()
 
 if (NOT WIN32)
-    if (EXISTS "${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}.PKGBUILD.in")
+    if (EXISTS "${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}.PKGBUILD.in" AND
+            GENERATE_PKGBUILD)
         configure_file(${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}.PKGBUILD.in
             ${CMAKE_CURRENT_BINARY_DIR}/PKGBUILD @ONLY
         )
     endif()
 
-    if (EXISTS "${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}.ebuild.in")
-        configure_file(${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}.ebuild.in
-            ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-${PROJECT_VERSION}.ebuild @ONLY
-        )
-    endif()
-
-    if (BUILD_TARBALL OR BUILD_ARCH)
+    if (BUILD_TARBALL OR GENERATE_EBUILD)
         add_custom_command(
             TARGET ${PROJECT_NAME}
             COMMENT "Create tarball"
@@ -123,31 +116,24 @@ if (NOT WIN32)
             WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
             COMMAND scripts/${PROJECT_NAME}_make dist && mv ${PROJECT_SOURCE_DIR}/${PROJECT_NAME}-${PROJECT_VERSION}.tar.gz* ${CMAKE_BINARY_DIR}
         )
-    elseif (BUILD_TARBALL_RELEASE OR BUILD_ARCH_RELEASE)
-        add_custom_command(
-            TARGET ${PROJECT_NAME}
-            COMMENT "Create tarball"
-            POST_BUILD
-            WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
-            COMMAND scripts/${PROJECT_NAME}_make dist_release && mv ${PROJECT_SOURCE_DIR}/${PROJECT_NAME}-${PROJECT_VERSION}.tar.gz* ${CMAKE_BINARY_DIR}
-        )
     endif()
 
-    if (BUILD_ARCH_RELEASE)
-        add_custom_command(
-            TARGET ${PROJECT_NAME}
-            COMMENT "Build arch package"
-            POST_BUILD
-            WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
-            COMMAND makepkg -sfr --sign
+    if (EXISTS "${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}.ebuild.in" AND
+            GENERATE_EBUILD )
+        configure_file(${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}.ebuild.in
+            ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-${PROJECT_VERSION}.ebuild @ONLY
         )
-    elseif (BUILD_ARCH)
         add_custom_command(
             TARGET ${PROJECT_NAME}
-            COMMENT "Build arch package"
+            COMMENT "Copy ebuild and generate manifest"
             POST_BUILD
             WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
-            COMMAND makepkg -sfr
+            COMMAND cp
+            ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-${PROJECT_VERSION}.ebuild
+            ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-9999.ebuild &&
+            ${PROJECT_SOURCE_DIR}/scripts/generate_manifest
+            ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-${PROJECT_VERSION}.tar.gz
+            > ${CMAKE_CURRENT_BINARY_DIR}/Manifest
         )
     endif()
 endif()
diff --git a/README.md b/README.md
index 87d1987..fff6549 100644
--- a/README.md
+++ b/README.md
@@ -30,9 +30,15 @@ cmake --install . --prefix /usr
 ```
 
 This will install the library to /usr/lib and the headers to /usr/include/docpp.
-If you use Arch Linux, you can install the library by specifying -DBUILD_ARCH=ON to the cmake build command. This requires makepkg. If you don't specify anything, a PKGBUILD will be generated in the build directory.
-If you use Gentoo Linux, an ebuild will automatically be generated in the build directory.
-If you use a package manager that uses DEB or RPM packages, you can enable the BUILD_DEB or BUILD_RPM options to generate a package, which will be placed in the build directory.
+If you use Arch Linux, you can specify -DGENERATE_PKGBUILD=ON to generate a PKGBUILD file in the build directory. You can then use makepkg to build a package.
+
+```sh
+cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr -DGENERATE_PKGBUILD=ON
+cmake --build .
+makepkg -si
+```
+
+If you use Gentoo Linux, you can specify -DGENERATE_EBUILD=ON to generate an ebuild file in the build directory, along with the manifest.
 
 ## Usage
 
diff --git a/cmake/docpp.ebuild.in b/cmake/docpp.ebuild.in
new file mode 100644
index 0000000..5ea225a
--- /dev/null
+++ b/cmake/docpp.ebuild.in
@@ -0,0 +1,45 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+inherit toolchain-funcs cmake
+
+DESCRIPTION="C++ library for generating XML, HTML and CSS."
+HOMEPAGE=""
+
+if [[ ${PV} == 9999 ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://git.speedie.site/speedie/${PN}.git"
+else
+	KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~ppc ~ppc64 ~riscv ~x86"
+	SRC_URI="https://ls.speedie.site/releases/${PN}/${PN}-${PV}/${P}.tar.gz -> ${P}.tar.gz"
+	S="${WORKDIR}/${P}"
+fi
+
+LICENSE="LGPL-3"
+SLOT="0"
+IUSE=""
+
+DEPEND="${RDEPEND}"
+BDEPEND="virtual/pkgconfig dev-build/cmake"
+
+src_prepare() {
+	default
+}
+
+src_configure() {
+    local cmakeargs=(
+        -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr"
+        -DCMAKE_BUILD_TYPE=Release
+    )
+
+    cmake_src_configure
+}
+
+src_compile() {
+    cmake_src_compile
+}
+
+src_install() {
+    cmake_src_install
+}
diff --git a/cmake/docpp.pc.in b/cmake/docpp.pc.in
index c8e1167..8cd3bf9 100644
--- a/cmake/docpp.pc.in
+++ b/cmake/docpp.pc.in
@@ -1,6 +1,6 @@
 prefix=@CMAKE_INSTALL_PREFIX@
 exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
 includedir=${prefix}/include
 
 Name: @PROJECT_NAME@
diff --git a/scripts/docpp_make b/scripts/docpp_make
index e69a0a5..ce94f7e 100755
--- a/scripts/docpp_make
+++ b/scripts/docpp_make
@@ -36,13 +36,16 @@ gen_pkg() {
     rm -rf ${proj}-${version}
 
     USER="$(whoami)"
-    printf "Is your GPG key '$(whoami)'?\n"
-    select yn in "Yes" "No"; do
-        case $yn in
-            Yes) USER="$(whoami)"; break ;;
-            No) printf "\n> "; read -r USER; break ;;
-        esac
-    done
+
+    if [ "$1" = "release" ]; then
+        printf "Is your GPG key '$(whoami)'?\n"
+        select yn in "Yes" "No"; do
+            case $yn in
+                Yes) USER="$(whoami)"; break ;;
+                No) printf "\n> "; read -r USER; break ;;
+            esac
+        done
+    fi
 
     if [ -x "$(command -v gpg)" ] && [ "$1" = "release" ]; then
         gpg --detach-sign --yes --local-user "${USER}" ${proj}-${version}.tar.gz
diff --git a/scripts/generate_manifest b/scripts/generate_manifest
new file mode 100755
index 0000000..5b2449f
--- /dev/null
+++ b/scripts/generate_manifest
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+[ "$1" = "" ] && {
+    printf "%s\n" "Usage: $0 <file>"
+    exit 1
+}
+
+[ ! -f "$1" ] && {
+    printf "%s\n" "Error: file '$1' not found"
+    exit 1
+}
+
+filename=$(basename "$1")
+size=$(stat -c %s "$1")
+#md5=$(md5sum "$1" | cut -d' ' -f1)
+#sha1=$(sha1sum "$1" | cut -d' ' -f1)
+#sha256=$(sha256sum "$1" | cut -d' ' -f1)
+sha512=$(sha512sum "$1" | cut -d' ' -f1)
+blake2b=$(b2sum "$1" | cut -d' ' -f1)
+
+printf "%s\n" "DIST $filename $size BLAKE2B $blake2b SHA512 $sha512"