diff --git a/apps/api/Gemfile.lock b/apps/api/Gemfile.lock
index cf1a3b9..0ae5ece 100644
--- a/apps/api/Gemfile.lock
+++ b/apps/api/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../libs/ruby/warp_engine
   specs:
-    warp_engine (0.2.0)
+    warp_engine (0.3.0)
       apipie-rails
       blueprinter
       rails (>= 8.0)
diff --git a/apps/frontend/src/i18n/locales/en.ts b/apps/frontend/src/i18n/locales/en.ts
index 018e53e..3aa6cd4 100644
--- a/apps/frontend/src/i18n/locales/en.ts
+++ b/apps/frontend/src/i18n/locales/en.ts
@@ -160,6 +160,7 @@ export default {
       win_x64: 'Windows (64-bit)',
       linux_x86: 'Linux (32-bit)',
       linux_x64: 'Linux (64-bit)',
+      linux_arm64: 'Linux (ARM 64-bit)',
       mac_x64: 'macOS (Intel)',
       mac_arm64: 'macOS (Apple Silicon)',
       mac_universal: 'macOS',
diff --git a/apps/frontend/src/i18n/locales/hu.ts b/apps/frontend/src/i18n/locales/hu.ts
index 6703c48..649b44f 100644
--- a/apps/frontend/src/i18n/locales/hu.ts
+++ b/apps/frontend/src/i18n/locales/hu.ts
@@ -160,6 +160,7 @@ export default {
       win_x64: 'Windows (64 bit)',
       linux_x86: 'Linux (32 bit)',
       linux_x64: 'Linux (64 bit)',
+      linux_arm64: 'Linux (ARM 64 bit)',
       mac_x64: 'macOS (Intel)',
       mac_arm64: 'macOS (Apple Silicon)',
       mac_universal: 'macOS',
diff --git a/apps/frontend/src/page/builds/BuildsIndexPage.vue b/apps/frontend/src/page/builds/BuildsIndexPage.vue
index 5030379..7c7d9db 100644
--- a/apps/frontend/src/page/builds/BuildsIndexPage.vue
+++ b/apps/frontend/src/page/builds/BuildsIndexPage.vue
@@ -120,6 +120,7 @@ const columnGroups = [
     color: 'group-amber',
     kinds: [
       { kind: 'linux_x64', sub: '64 bit' },
+      { kind: 'linux_arm64', sub: 'ARM 64 bit' },
     ],
   },
   {
diff --git a/apps/frontend/src/page/catalog/CatalogShowPage.vue b/apps/frontend/src/page/catalog/CatalogShowPage.vue
index a723599..764923d 100644
--- a/apps/frontend/src/page/catalog/CatalogShowPage.vue
+++ b/apps/frontend/src/page/catalog/CatalogShowPage.vue
@@ -314,7 +314,7 @@ const downloadUrl = (path: string) =>
 // az asset-táblázat sorai és sorrendjük; a html nem letöltés, azt a Play gomb viszi
 const TABLE_KIND_ORDER = [
   'cartridge', 'source', 'docs',
-  'win_x64', 'win_x86', 'linux_x64', 'linux_x86',
+  'win_x64', 'win_x86', 'linux_x64', 'linux_arm64', 'linux_x86',
   'mac_universal', 'mac_arm64', 'mac_x64',
 ]
 
diff --git a/libs/ruby/warp_engine/app/models/warp_engine/release_asset.rb b/libs/ruby/warp_engine/app/models/warp_engine/release_asset.rb
index 001d69e..c197510 100644
--- a/libs/ruby/warp_engine/app/models/warp_engine/release_asset.rb
+++ b/libs/ruby/warp_engine/app/models/warp_engine/release_asset.rb
@@ -1,7 +1,7 @@
 module WarpEngine
   class ReleaseAsset < ApplicationRecord
     KINDS = %w[cartridge source html docs
-               win_x86 win_x64 linux_x86 linux_x64
+               win_x86 win_x64 linux_x86 linux_x64 linux_arm64
                mac_x64 mac_arm64 mac_universal].freeze
 
     belongs_to :release
diff --git a/libs/ruby/warp_engine/app/services/concerns/warp_engine/platforms/builds/build_linux_arm64.rb b/libs/ruby/warp_engine/app/services/concerns/warp_engine/platforms/builds/build_linux_arm64.rb
new file mode 100644
index 0000000..a150c8e
--- /dev/null
+++ b/libs/ruby/warp_engine/app/services/concerns/warp_engine/platforms/builds/build_linux_arm64.rb
@@ -0,0 +1,28 @@
+module WarpEngine
+  module Platforms
+    module Builds
+      # Linux on 64-bit ARM: Raspberry Pi 4/5, Odroid, and the retro handhelds.
+      # Batocera and the ES-family distributions run on these as much as on
+      # x86_64, and an x64 binary installs there but will not start — which is
+      # why this is a separate kind rather than something linux_x64 can cover.
+      #
+      # Include this in a platform service only once its pipeline actually
+      # produces the artifact: registering the kind makes /api/builds report it
+      # as missing for every release until then.
+      module BuildLinuxArm64
+        extend ActiveSupport::Concern
+
+        included do
+          register_expected_kind "linux_arm64"
+        end
+
+        private
+
+        def linux_arm64_asset_path(versioned)
+          path = full_path("#{versioned}-linux-arm64.zip")
+          { "linux_arm64" => path } if File.file?(path)
+        end
+      end
+    end
+  end
+end
diff --git a/libs/ruby/warp_engine/app/services/warp_engine/platforms/bevy/pipeline.yaml.erb b/libs/ruby/warp_engine/app/services/warp_engine/platforms/bevy/pipeline.yaml.erb
index 272aca1..209431c 100644
--- a/libs/ruby/warp_engine/app/services/warp_engine/platforms/bevy/pipeline.yaml.erb
+++ b/libs/ruby/warp_engine/app/services/warp_engine/platforms/bevy/pipeline.yaml.erb
@@ -65,6 +65,15 @@ steps:
         CARGO_TARGET_X86_64_PC_WINDOWS_GNU_LINKER=x86_64-w64-mingw32-gcc \
           cargo build --release --target x86_64-pc-windows-gnu
         pack_binary "win-x64" "target/x86_64-pc-windows-gnu/release/<%= name %>.exe" "<%= name %>.exe"
+        # linux-arm64: Raspberry Pi, Odroid, retro handhelds. pkg-config has to
+        # be told it may cross, and pointed at the arm64 .pc files, otherwise
+        # alsa-sys/libudev-sys pick up the host x86_64 libraries.
+        echo "==> Building linux-arm64 binary"
+        PKG_CONFIG_ALLOW_CROSS=1 \
+          PKG_CONFIG_PATH=/usr/lib/aarch64-linux-gnu/pkgconfig \
+          CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc \
+          cargo build --release --target aarch64-unknown-linux-gnu
+        pack_binary "linux-arm64" "target/aarch64-unknown-linux-gnu/release/<%= name %>" "<%= name %>"
 
   - name: upload
     image: alpine
@@ -81,7 +90,7 @@ steps:
         META_DST="<%= name %>-$VERSION.metadata.json"
         cp $META_SRC $META_DST
         BINS=""
-        for slug in win-x64 linux-x64; do
+        for slug in win-x64 linux-x64 linux-arm64; do
           [ -f "<%= name %>-$VERSION-$slug.zip" ] && BINS="$BINS <%= name %>-$VERSION-$slug.zip"
         done
         for f in $FILE $META_DST $BINS; do
diff --git a/libs/ruby/warp_engine/app/services/warp_engine/platforms/bevy/service.rb b/libs/ruby/warp_engine/app/services/warp_engine/platforms/bevy/service.rb
index 01cf885..4d82477 100644
--- a/libs/ruby/warp_engine/app/services/warp_engine/platforms/bevy/service.rb
+++ b/libs/ruby/warp_engine/app/services/warp_engine/platforms/bevy/service.rb
@@ -6,6 +6,7 @@ module WarpEngine
         include Builds::BuildWeb
         include Builds::BuildWinX64
         include Builds::BuildLinuxX64
+        include Builds::BuildLinuxArm64
 
         label "Bevy"
       end
diff --git a/libs/ruby/warp_engine/app/services/warp_engine/platforms/ebitengine/pipeline.yaml.erb b/libs/ruby/warp_engine/app/services/warp_engine/platforms/ebitengine/pipeline.yaml.erb
index 1450b47..4aab67d 100644
--- a/libs/ruby/warp_engine/app/services/warp_engine/platforms/ebitengine/pipeline.yaml.erb
+++ b/libs/ruby/warp_engine/app/services/warp_engine/platforms/ebitengine/pipeline.yaml.erb
@@ -44,11 +44,14 @@ steps:
         # helper: builds one target + zips it with a single root folder
         # (unix zip keeps the executable bit)
         binary_build() {
-          B_GOOS="$1"; B_GOARCH="$2"; B_CGO="$3"; B_EXT="$4"; B_TARGET="$5"
+          B_GOOS="$1"; B_GOARCH="$2"; B_CGO="$3"; B_EXT="$4"; B_TARGET="$5"; B_CC="$6"
           PKG_DIR="<%= name %>-$VERSION-$B_TARGET"
           echo "==> Building $PKG_DIR"
           rm -rf "$PKG_DIR" "$PKG_DIR.zip"
           mkdir -p "$PKG_DIR"
+          # cgo cross-compile needs an explicit cross gcc; a native build must
+          # not see CC at all, otherwise go picks the wrong compiler
+          if [ -n "$B_CC" ]; then export CC="$B_CC"; else unset CC; fi
           CGO_ENABLED=$B_CGO GOOS=$B_GOOS GOARCH=$B_GOARCH go build -o "$PKG_DIR/<%= name %>$B_EXT" .
           if [ -f LICENSE ]; then cp LICENSE "$PKG_DIR/"; fi
           if [ -f README.md ]; then cp README.md "$PKG_DIR/"; fi
@@ -56,10 +59,13 @@ steps:
           rm -rf "$PKG_DIR"
           echo "==> $PKG_DIR.zip kesz"
         }
-        # CI (linux builder) builds these three:
+        # CI (linux builder) builds these four:
         binary_build "windows" "386" "0" ".exe" "win-x86"
         binary_build "windows" "amd64" "0" ".exe" "win-x64"
         binary_build "linux" "amd64" "1" "" "linux-x64"
+        # linux-arm64: Raspberry Pi, Odroid, retro handhelds — cgo cross-build
+        # against the arm64 X11/GL/ALSA headers in the builder image
+        binary_build "linux" "arm64" "1" "" "linux-arm64" "aarch64-linux-gnu-gcc"
 
   - name: artifact
     image: alpine
diff --git a/libs/ruby/warp_engine/app/services/warp_engine/platforms/ebitengine/service.rb b/libs/ruby/warp_engine/app/services/warp_engine/platforms/ebitengine/service.rb
index e5cfa11..d053972 100644
--- a/libs/ruby/warp_engine/app/services/warp_engine/platforms/ebitengine/service.rb
+++ b/libs/ruby/warp_engine/app/services/warp_engine/platforms/ebitengine/service.rb
@@ -7,6 +7,7 @@ module WarpEngine
         include Builds::BuildWinX86
         include Builds::BuildWinX64
         include Builds::BuildLinuxX64
+        include Builds::BuildLinuxArm64
         include Builds::BuildMacX64
         include Builds::BuildMacArm64
 
diff --git a/libs/ruby/warp_engine/lib/warp_engine/version.rb b/libs/ruby/warp_engine/lib/warp_engine/version.rb
index 7349cc2..b66d2a7 100644
--- a/libs/ruby/warp_engine/lib/warp_engine/version.rb
+++ b/libs/ruby/warp_engine/lib/warp_engine/version.rb
@@ -1,3 +1,3 @@
 module WarpEngine
-  VERSION = "0.2.0"
+  VERSION = "0.3.0"
 end