diff --git a/images/base/run_stage.sh b/images/base/run_stage.sh
index d51438a..9fe0a97 100755
--- a/images/base/run_stage.sh
+++ b/images/base/run_stage.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -xe
 mkdir -p /stage
+source "$1"
 cd /stage
-source /stage.sh
 ffbuild_dockerbuild
-rm -rf /stage /stage.sh "$FFBUILD_PREFIX"/bin
+rm -rf /stage "$FFBUILD_PREFIX"/bin
diff --git a/scripts.d/10-mingw.sh b/scripts.d/10-mingw.sh
index 85b77ca..4a7c198 100755
--- a/scripts.d/10-mingw.sh
+++ b/scripts.d/10-mingw.sh
@@ -8,11 +8,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$MINGW_REPO" "$MINGW_COMMIT" mingw
     cd mingw/mingw-w64-headers
diff --git a/scripts.d/20-libiconv.sh b/scripts.d/20-libiconv.sh
index a0bd22a..bb754d8 100755
--- a/scripts.d/20-libiconv.sh
+++ b/scripts.d/20-libiconv.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir iconv
     cd iconv
diff --git a/scripts.d/20-zlib.sh b/scripts.d/20-zlib.sh
index afe216c..96520d6 100755
--- a/scripts.d/20-zlib.sh
+++ b/scripts.d/20-zlib.sh
@@ -6,11 +6,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir zlib
     cd zlib
diff --git a/scripts.d/21-libxml2.sh b/scripts.d/21-libxml2.sh
index b58bb95..2bbf962 100755
--- a/scripts.d/21-libxml2.sh
+++ b/scripts.d/21-libxml2.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$LIBXML2_REPO" "$LIBXML2_COMMIT" libxml2
     cd libxml2
diff --git a/scripts.d/25-freetype.sh b/scripts.d/25-freetype.sh
index 5769c57..af603a3 100755
--- a/scripts.d/25-freetype.sh
+++ b/scripts.d/25-freetype.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir ft
     cd ft
diff --git a/scripts.d/25-fribidi.sh b/scripts.d/25-fribidi.sh
index c69f463..c106c47 100755
--- a/scripts.d/25-fribidi.sh
+++ b/scripts.d/25-fribidi.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$FRIBIDI_REPO" "$FRIBIDI_COMMIT" fribidi
     cd fribidi
diff --git a/scripts.d/25-gmp.sh b/scripts.d/25-gmp.sh
index 1124954..a82ef5c 100755
--- a/scripts.d/25-gmp.sh
+++ b/scripts.d/25-gmp.sh
@@ -6,11 +6,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir gmp
     cd gmp
diff --git a/scripts.d/25-libogg.sh b/scripts.d/25-libogg.sh
index 47d0c77..29b5e17 100755
--- a/scripts.d/25-libogg.sh
+++ b/scripts.d/25-libogg.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$OGG_REPO" "$OGG_COMMIT" ogg
     cd ogg
diff --git a/scripts.d/25-openssl.sh b/scripts.d/25-openssl.sh
index 0db996e..3f1a4bb 100755
--- a/scripts.d/25-openssl.sh
+++ b/scripts.d/25-openssl.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$OPENSSL_REPO" "$OPENSSL_COMMIT" openssl
     cd openssl
diff --git a/scripts.d/25-xz.sh b/scripts.d/25-xz.sh
index 952ddc2..20bbe20 100755
--- a/scripts.d/25-xz.sh
+++ b/scripts.d/25-xz.sh
@@ -6,11 +6,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir xz
     cd xz
diff --git a/scripts.d/35-fontconfig.sh b/scripts.d/35-fontconfig.sh
index 6394756..fe8cc06 100755
--- a/scripts.d/35-fontconfig.sh
+++ b/scripts.d/35-fontconfig.sh
@@ -6,11 +6,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir fc
     cd fc
diff --git a/scripts.d/40-fftw3.sh b/scripts.d/40-fftw3.sh
index 3222d87..bc310dc 100755
--- a/scripts.d/40-fftw3.sh
+++ b/scripts.d/40-fftw3.sh
@@ -10,11 +10,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir fftw3
     cd fftw3
diff --git a/scripts.d/45-harfbuzz.sh b/scripts.d/45-harfbuzz.sh
index f6c2cf8..9dfe680 100755
--- a/scripts.d/45-harfbuzz.sh
+++ b/scripts.d/45-harfbuzz.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$HARFBUZZ_REPO" "$HARFBUZZ_COMMIT" harfbuzz
     cd harfbuzz
diff --git a/scripts.d/45-libsamplerate.sh b/scripts.d/45-libsamplerate.sh
index 79c5d1b..ee9539b 100755
--- a/scripts.d/45-libsamplerate.sh
+++ b/scripts.d/45-libsamplerate.sh
@@ -9,11 +9,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$LIBSR_REPO" "$LIBSR_COMMIT" libsr
     cd libsr
diff --git a/scripts.d/45-libudfread.sh b/scripts.d/45-libudfread.sh
index 589505e..666ca60 100755
--- a/scripts.d/45-libudfread.sh
+++ b/scripts.d/45-libudfread.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$LIBUDFREAD_REPO" "$LIBUDFREAD_COMMIT" libudfread
     cd libudfread
diff --git a/scripts.d/45-lv2.sh b/scripts.d/45-lv2.sh
index d10533a..d8d43d7 100755
--- a/scripts.d/45-lv2.sh
+++ b/scripts.d/45-lv2.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$LV2_REPO" "$LV2_COMMIT" lv2
     cd lv2
diff --git a/scripts.d/45-opencl.sh b/scripts.d/45-opencl.sh
index 17d7d1e..e902cdc 100755
--- a/scripts.d/45-opencl.sh
+++ b/scripts.d/45-opencl.sh
@@ -10,11 +10,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir opencl && cd opencl
 
diff --git a/scripts.d/45-serd.sh b/scripts.d/45-serd.sh
index 075a05b..d62d57e 100755
--- a/scripts.d/45-serd.sh
+++ b/scripts.d/45-serd.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$SERD_REPO" "$SERD_COMMIT" serd
     cd serd
diff --git a/scripts.d/45-vmaf.sh b/scripts.d/45-vmaf.sh
index 2739f20..b298921 100755
--- a/scripts.d/45-vmaf.sh
+++ b/scripts.d/45-vmaf.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$VMAF_REPO" "$VMAF_COMMIT" vmaf
     cd vmaf
diff --git a/scripts.d/45-vulkan.sh b/scripts.d/45-vulkan.sh
index 900830a..63b92b6 100755
--- a/scripts.d/45-vulkan.sh
+++ b/scripts.d/45-vulkan.sh
@@ -8,16 +8,14 @@ ffbuild_enabled() {
 }
 
 ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "ADD patches/vulkan /stage/patches"
-    to_df "RUN run_stage"
+    to_df "RUN --mount=src=${SELF},dst=/stage.sh --mount=src=patches/vulkan,dst=/patches run_stage /stage.sh"
 }
 
 ffbuild_dockerbuild() {
     git clone "$LOADER_REPO" loader
     git -C loader checkout "$LOADER_COMMIT"
 
-    for patch in patches/*.patch; do
+    for patch in /patches/*.patch; do
         echo "Applying $patch"
         git -C loader am -3 < "$patch"
     done
diff --git a/scripts.d/46-sord.sh b/scripts.d/46-sord.sh
index 0b6b17b..0930117 100755
--- a/scripts.d/46-sord.sh
+++ b/scripts.d/46-sord.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$SORD_REPO" "$SORD_COMMIT" sord
     cd sord
diff --git a/scripts.d/47-sratom.sh b/scripts.d/47-sratom.sh
index 340fb74..b325e2f 100755
--- a/scripts.d/47-sratom.sh
+++ b/scripts.d/47-sratom.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$SRATOM_REPO" "$SRATOM_COMMIT" sratom
     cd sratom
diff --git a/scripts.d/49-libvorbis.sh b/scripts.d/49-libvorbis.sh
index a0bc8ef..cdf92d2 100755
--- a/scripts.d/49-libvorbis.sh
+++ b/scripts.d/49-libvorbis.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$VORBIS_REPO" "$VORBIS_COMMIT" vorbis
     cd vorbis
diff --git a/scripts.d/50-amf.sh b/scripts.d/50-amf.sh
index 83ebb89..b40bd84 100755
--- a/scripts.d/50-amf.sh
+++ b/scripts.d/50-amf.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$AMF_REPO" "$AMF_COMMIT" amf
     cd amf
diff --git a/scripts.d/50-aom.sh b/scripts.d/50-aom.sh
index 0ac6cb9..a15bb49 100755
--- a/scripts.d/50-aom.sh
+++ b/scripts.d/50-aom.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$AOM_REPO" "$AOM_COMMIT" aom
     cd aom
diff --git a/scripts.d/50-avisynth.sh b/scripts.d/50-avisynth.sh
index 8061338..475f398 100755
--- a/scripts.d/50-avisynth.sh
+++ b/scripts.d/50-avisynth.sh
@@ -8,11 +8,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$AVISYNTH_REPO" "$AVISYNTH_COMMIT" avisynth
     cd avisynth
diff --git a/scripts.d/50-dav1d.sh b/scripts.d/50-dav1d.sh
index b97da75..11ab209 100755
--- a/scripts.d/50-dav1d.sh
+++ b/scripts.d/50-dav1d.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$DAV1D_REPO" "$DAV1D_COMMIT" dav1d
     cd dav1d
diff --git a/scripts.d/50-davs2.sh b/scripts.d/50-davs2.sh
index 3731427..cabe83a 100755
--- a/scripts.d/50-davs2.sh
+++ b/scripts.d/50-davs2.sh
@@ -9,11 +9,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git clone "$DAVS2_REPO" davs2
     cd davs2
diff --git a/scripts.d/50-ffnvcodec.sh b/scripts.d/50-ffnvcodec.sh
index 01d209c..87b6bf9 100755
--- a/scripts.d/50-ffnvcodec.sh
+++ b/scripts.d/50-ffnvcodec.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$FFNVCODEC_REPO" "$FFNVCODEC_COMMIT" ffnvcodec
     cd ffnvcodec
diff --git a/scripts.d/50-glslang.sh b/scripts.d/50-glslang.sh
index aad706c..1d08426 100755
--- a/scripts.d/50-glslang.sh
+++ b/scripts.d/50-glslang.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$GLSLANG_REPO" "$GLSLANG_COMMIT" glslang
     cd glslang
diff --git a/scripts.d/50-gme.sh b/scripts.d/50-gme.sh
index 0366a25..5a7a0c7 100755
--- a/scripts.d/50-gme.sh
+++ b/scripts.d/50-gme.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git clone "$GME_REPO" gme
     cd gme
diff --git a/scripts.d/50-libass.sh b/scripts.d/50-libass.sh
index d8ef168..29daf7f 100755
--- a/scripts.d/50-libass.sh
+++ b/scripts.d/50-libass.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$ASS_REPO" "$ASS_COMMIT" ass
     cd ass
diff --git a/scripts.d/50-libbluray.sh b/scripts.d/50-libbluray.sh
index 0942bbb..145d980 100755
--- a/scripts.d/50-libbluray.sh
+++ b/scripts.d/50-libbluray.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$LIBBLURAY_REPO" "$LIBBLURAY_COMMIT" libbluray
     cd libbluray
diff --git a/scripts.d/50-libmp3lame.sh b/scripts.d/50-libmp3lame.sh
index f299d2d..28998a3 100755
--- a/scripts.d/50-libmp3lame.sh
+++ b/scripts.d/50-libmp3lame.sh
@@ -6,11 +6,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir lame
     cd lame
diff --git a/scripts.d/50-libopus.sh b/scripts.d/50-libopus.sh
index 7fb4051..4ecfa02 100755
--- a/scripts.d/50-libopus.sh
+++ b/scripts.d/50-libopus.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$OPUS_REPO" "$OPUS_COMMIT" opus
     cd opus
diff --git a/scripts.d/50-libtheora.sh b/scripts.d/50-libtheora.sh
index 46e9ef9..9ae2a22 100755
--- a/scripts.d/50-libtheora.sh
+++ b/scripts.d/50-libtheora.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$THEORA_REPO" "$THEORA_COMMIT" theora
     cd theora
diff --git a/scripts.d/50-libvpx.sh b/scripts.d/50-libvpx.sh
index fa62b6c..0788a5b 100755
--- a/scripts.d/50-libvpx.sh
+++ b/scripts.d/50-libvpx.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$LIBVPX_REPO" "$LIBVPX_COMMIT" libvpx
     cd libvpx
diff --git a/scripts.d/50-libwebp.sh b/scripts.d/50-libwebp.sh
index 5847f58..c28b398 100755
--- a/scripts.d/50-libwebp.sh
+++ b/scripts.d/50-libwebp.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$WEBP_REPO" "$WEBP_COMMIT" webp
     cd webp
diff --git a/scripts.d/50-lilv.sh b/scripts.d/50-lilv.sh
index c31cd58..5a15b13 100755
--- a/scripts.d/50-lilv.sh
+++ b/scripts.d/50-lilv.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$LILV_REPO" "$LILV_COMMIT" lilv
     cd lilv
diff --git a/scripts.d/50-mfx.sh b/scripts.d/50-mfx.sh
index 4955890..0f64c42 100755
--- a/scripts.d/50-mfx.sh
+++ b/scripts.d/50-mfx.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$MFX_REPO" "$MFX_COMMIT" mfx
     cd mfx
diff --git a/scripts.d/50-opencore-amr.sh b/scripts.d/50-opencore-amr.sh
index 91b1d57..29099bb 100755
--- a/scripts.d/50-opencore-amr.sh
+++ b/scripts.d/50-opencore-amr.sh
@@ -6,11 +6,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir opencore
     cd opencore
diff --git a/scripts.d/50-openjpeg.sh b/scripts.d/50-openjpeg.sh
index dc89bcf..c3fa832 100755
--- a/scripts.d/50-openjpeg.sh
+++ b/scripts.d/50-openjpeg.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$OPENJPEG_REPO" "$OPENJPEG_COMMIT" openjpeg
     cd openjpeg
diff --git a/scripts.d/50-rav1e.sh b/scripts.d/50-rav1e.sh
index 40c1ead..6a86493 100755
--- a/scripts.d/50-rav1e.sh
+++ b/scripts.d/50-rav1e.sh
@@ -8,11 +8,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$RAV1E_REPO" "$RAV1E_COMMIT" rav1e
     cd rav1e
diff --git a/scripts.d/50-rubberband.sh b/scripts.d/50-rubberband.sh
index d143dcd..f2b8006 100755
--- a/scripts.d/50-rubberband.sh
+++ b/scripts.d/50-rubberband.sh
@@ -8,11 +8,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir rubberband
     cd rubberband
diff --git a/scripts.d/50-sdl.sh b/scripts.d/50-sdl.sh
index 1cbd674..982ac27 100755
--- a/scripts.d/50-sdl.sh
+++ b/scripts.d/50-sdl.sh
@@ -6,11 +6,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir sdl
     cd sdl
diff --git a/scripts.d/50-soxr.sh b/scripts.d/50-soxr.sh
index 19d1db6..3086b83 100755
--- a/scripts.d/50-soxr.sh
+++ b/scripts.d/50-soxr.sh
@@ -8,11 +8,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$SOXR_REPO" "$SOXR_COMMIT" soxr
     cd soxr
diff --git a/scripts.d/50-srt.sh b/scripts.d/50-srt.sh
index 3ed3b3e..0488921 100755
--- a/scripts.d/50-srt.sh
+++ b/scripts.d/50-srt.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$SRT_REPO" "$SRT_COMMIT" srt
     cd srt
diff --git a/scripts.d/50-svtav1.sh b/scripts.d/50-svtav1.sh
index 45d266f..8b68225 100755
--- a/scripts.d/50-svtav1.sh
+++ b/scripts.d/50-svtav1.sh
@@ -9,11 +9,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git clone "$SVTAV1_REPO" svtav1
     cd svtav1
diff --git a/scripts.d/50-twolame.sh b/scripts.d/50-twolame.sh
index 8ae383e..170e296 100755
--- a/scripts.d/50-twolame.sh
+++ b/scripts.d/50-twolame.sh
@@ -6,11 +6,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir twolame
     cd twolame
diff --git a/scripts.d/50-uavs3d.sh b/scripts.d/50-uavs3d.sh
index 9a64017..4651fec 100755
--- a/scripts.d/50-uavs3d.sh
+++ b/scripts.d/50-uavs3d.sh
@@ -9,11 +9,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git clone "$UAVS3D_REPO" uavs3d
     cd uavs3d
diff --git a/scripts.d/50-vidstab.sh b/scripts.d/50-vidstab.sh
index 1eb625a..6c18458 100755
--- a/scripts.d/50-vidstab.sh
+++ b/scripts.d/50-vidstab.sh
@@ -9,11 +9,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$VIDSTAB_REPO" "$VIDSTAB_COMMIT" vidstab
     cd vidstab
diff --git a/scripts.d/50-x264.sh b/scripts.d/50-x264.sh
index cf25a0d..7f4d5b4 100755
--- a/scripts.d/50-x264.sh
+++ b/scripts.d/50-x264.sh
@@ -8,11 +8,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$X264_REPO" "$X264_COMMIT" x264
     cd x264
diff --git a/scripts.d/50-x265.sh b/scripts.d/50-x265.sh
index 36c933f..fc012d6 100755
--- a/scripts.d/50-x265.sh
+++ b/scripts.d/50-x265.sh
@@ -8,11 +8,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git clone "$X265_REPO" x265
     cd x265
diff --git a/scripts.d/50-xavs2.sh b/scripts.d/50-xavs2.sh
index a3b01d8..424e479 100755
--- a/scripts.d/50-xavs2.sh
+++ b/scripts.d/50-xavs2.sh
@@ -9,11 +9,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git clone "$XAVS2_REPO" xavs2
     cd xavs2
diff --git a/scripts.d/50-xvid.sh b/scripts.d/50-xvid.sh
index e8a2728..ca5fe14 100755
--- a/scripts.d/50-xvid.sh
+++ b/scripts.d/50-xvid.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     mkdir xvid
     cd xvid
diff --git a/scripts.d/50-zimg.sh b/scripts.d/50-zimg.sh
index f413cc2..103f87c 100755
--- a/scripts.d/50-zimg.sh
+++ b/scripts.d/50-zimg.sh
@@ -7,11 +7,6 @@ ffbuild_enabled() {
     return 0
 }
 
-ffbuild_dockerstage() {
-    to_df "ADD $SELF /stage.sh"
-    to_df "RUN run_stage"
-}
-
 ffbuild_dockerbuild() {
     git-mini-clone "$ZIMG_REPO" "$ZIMG_COMMIT" zimg
     cd zimg
diff --git a/util/vars.sh b/util/vars.sh
index 6f06fc6..72ea500 100644
--- a/util/vars.sh
+++ b/util/vars.sh
@@ -35,6 +35,10 @@ BASE_IMAGE="${REGISTRY}/${REPO}/base:latest"
 TARGET_IMAGE="${REGISTRY}/${REPO}/base-${TARGET}:latest"
 IMAGE="${REGISTRY}/${REPO}/${TARGET}-${VARIANT}${ADDINS_STR:+-}${ADDINS_STR}:latest"
 
+ffbuild_dockerstage() {
+    to_df "RUN --mount=src=${SELF},dst=/stage.sh run_stage /stage.sh"
+}
+
 ffbuild_configure() {
     return 0
 }