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@@ -3,7 +3,9 @@ FROM debian:testing
 RUN echo 'deb http://ftp-stud.hs-esslingen.de/pub/Mirrors/debian-multimedia/ testing main' > /etc/apt/sources.list.d/deb-multimedia.list \
     && apt-get update -oAcquire::AllowInsecureRepositories=true \
     && apt-get -y --allow-unauthenticated install deb-multimedia-keyring \
-    && apt-get update \
+    && rm -rf /var/lib/apt/lists
+
+RUN apt-get update \
     && apt-get -y install \
         autoconf \
         beignet-opencl-icd \
@@ -20,6 +22,7 @@ RUN echo 'deb http://ftp-stud.hs-esslingen.de/pub/Mirrors/debian-multimedia/ tes
         x265 \
     && rm -rf /var/lib/apt/lists
 
+# required for DCTFilter
 RUN cd /tmp \
     && wget http://www.fftw.org/fftw-3.3.8.tar.gz \
     && tar xvf fftw-3.3.8.tar.gz \
@@ -44,7 +47,6 @@ RUN cd /tmp \
     && cd .. \
     && rm -rf VapourSynth-DCTFilter
 
-
 RUN cd /tmp \
     && git clone --depth=1 https://github.com/MonoS/VS-ContinuityFixer \
     && cd VS-ContinuityFixer \
@@ -57,7 +59,7 @@ RUN cd /tmp \
     && cd .. \
     && rm -rf VS-ContinuityFixer
 
-# Double speed for getnative
+# double speed for getnative
 RUN cd /tmp/ \
     && git clone --depth=1 https://github.com/BluBb-mADe/vapoursynth-descale \
     && cd vapoursynth-descale \
@@ -75,7 +77,10 @@ RUN pip3 --no-cache-dir install \
 
 ARG CACHEBUST_SCRIPTS=1
 
-RUN wget -nv -P /usr/local/lib/python3.*/dist-packages/ \
+ENV PYTHONPATH=/usr/local/lib/vapoursynth-scripts/
+
+RUN mkdir /usr/local/lib/vapoursynth-scripts/ \
+    && wget -nv -P /usr/local/lib/vapoursynth-scripts/ \
     https://gist.github.com/4re/342624c9e1a144a696c6/raw/08df48752c70c66df4127f2791bbedbc1958da77/nnedi3_rpow2.py \
     https://gist.github.com/YamashitaRen/020c497524e794779d9c/raw/2a20385e50804f8b24f2a2479e2c0f3c335d4853/edi_rpow2.py \
     https://github.com/HomeOfVapourSynthEvolution/havsfunc/raw/master/havsfunc.py \
@@ -89,9 +94,8 @@ RUN wget -nv -P /usr/local/lib/python3.*/dist-packages/ \
     https://github.com/Irrational-Encoding-Wizardry/vsutil/raw/master/vsutil.py \
     https://github.com/WolframRhodium/muvsfunc/raw/master/muvsfunc.py \
     https://github.com/dubhater/vapoursynth-adjust/raw/master/adjust.py \
-    https://github.com/theChaosCoder/lostfunc/raw/master/lostfunc.py
-
-RUN chmod 755 /usr/local/lib/python3.*/dist-packages/*
+    https://github.com/theChaosCoder/lostfunc/raw/master/lostfunc.py \
+    && chmod 755 /usr/local/lib/vapoursynth-scripts/*
 
 # models are at wrong location (whyever the package installs it there)
 RUN cp -r /usr/share/vapoursynth-waifu2x-models/ /usr/lib/x86_64-linux-gnu/vapoursynth/models/