diff --git a/Dockerfile b/Dockerfile
index 8b370b21..39b6a9e0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,14 @@
-FROM debian:trixie as base
+FROM debian:bullseye-backports as base
 
 ARG DEBIAN_FRONTEND=noninteractive
 ARG APT_LISTCHANGES_FRONTEND=none
 
 RUN apt-get update -qq
 RUN apt-get install --no-install-recommends -y dpkg-dev devscripts curl git
-RUN echo "deb-src http://deb.debian.org/debian/ trixie main" | tee -a /etc/apt/sources.list
+RUN echo "deb [signed-by=/etc/apt/trusted.gpg.d/spectrumim.gpg] https://packages.spectrum.im/spectrum2/ bullseye main" | tee -a /etc/apt/sources.list
+RUN echo "deb-src [signed-by=/etc/apt/trusted.gpg.d/spectrumim.gpg] https://packages.spectrum.im/spectrum2/ bullseye main" | tee -a /etc/apt/sources.list
+RUN curl https://packages.spectrum.im/packages.key | gpg --dearmor -o /etc/apt/trusted.gpg.d/spectrumim.gpg
+
 RUN apt-get update -qq
 RUN apt-get build-dep --no-install-recommends -y spectrum2
 RUN apt-get install --no-install-recommends -y libminiupnpc-dev libnatpmp-dev
@@ -25,23 +28,27 @@ ARG APT_LISTCHANGES_FRONTEND=none
 
 WORKDIR /spectrum2
 
-RUN apt-get install --no-install-recommends -y prosody ngircd libcppunit-dev purple-xmpp-carbons libglib2.0-dev psmisc
+RUN apt-get install --no-install-recommends -y prosody ngircd python3-sleekxmpp python3-dateutil python3-dnspython libcppunit-dev purple-xmpp-carbons libglib2.0-dev psmisc
+
 RUN cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DENABLE_TESTS=ON -DENABLE_QT4=OFF -DCMAKE_UNITY_BUILD=ON . && make -j4
 
-ENTRYPOINT ["make", "test"]
+ENTRYPOINT ["make", "extended_test"]
 
 FROM base as test-clang
 
 ARG DEBIAN_FRONTEND=noninteractive
 ARG APT_LISTCHANGES_FRONTEND=none
 
+RUN curl -fsSL https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
+
+RUN echo 'deb http://apt.llvm.org/bullseye/ llvm-toolchain-bullseye-13 main' > /etc/apt/sources.list.d/llvm.list
 RUN apt-get update -qq
 
-RUN apt-get install --no-install-recommends -y libcppunit-dev clang-16 lld-16
+RUN apt-get install --no-install-recommends -y libcppunit-dev clang-13 lld-13
 
 WORKDIR /spectrum2
 
-RUN cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DENABLE_TESTS=ON -DENABLE_QT4=OFF -DCMAKE_UNITY_BUILD=ON -DCMAKE_C_COMPILER=/usr/bin/clang-16 -DCMAKE_CXX_COMPILER=/usr/bin/clang++-16 -DCMAKE_EXE_LINKER_FLAGS=-fuse-ld=lld -DCMAKE_SHARED_LINKER_FLAGS=-fuse-ld=lld . && make -j4
+RUN cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DENABLE_TESTS=ON -DENABLE_QT4=OFF -DCMAKE_UNITY_BUILD=ON -DCMAKE_C_COMPILER=/usr/bin/clang-13 -DCMAKE_CXX_COMPILER=/usr/bin/clang++-13 -DCMAKE_EXE_LINKER_FLAGS=-fuse-ld=lld -DCMAKE_SHARED_LINKER_FLAGS=-fuse-ld=lld . && make -j4
 
 ENTRYPOINT ["make", "test"]
 
@@ -90,23 +97,7 @@ RUN echo "---> Install Steam" && \
 RUN echo "---> Install Teams" && \
 		git clone https://github.com/EionRobb/purple-teams.git && \
 		cd purple-teams && \
-		git checkout 1177f13c88822d75396196391058deab2d5b461a && \
-		make && \
-		make DESTDIR=/tmp/out install
-
-RUN echo "---> Install Skypeweb" && \
-		git clone https://github.com/EionRobb/skype4pidgin.git && \
-		cd skype4pidgin/skypeweb && \
-		make && \
-		make DESTDIR=/tmp/out install
-
-RUN echo "---> purple-gowhatsapp" && \
-		apt-get -y install golang && \
-		git clone https://github.com/hoehermann/purple-gowhatsapp.git && \
-		cd purple-gowhatsapp && \
-		git checkout v1.16.0 && \
-		git submodule update --init && \
-		cmake . && \
+		git checkout c0b5d9947e359c6cc8d54ee76af8dba116e0ec72 && \
 		make && \
 		make DESTDIR=/tmp/out install
 
@@ -128,27 +119,30 @@ git clone --recursive https://github.com/EionRobb/purple-mattermost && \
 		make && \
 		make DESTDIR=/tmp/out install
 
-RUN echo "---> tdlib-purple" && \
-		apt install -y gperf && \
-		cd /tmp && ( git clone https://github.com/tdlib/td.git ; cd td && git checkout 8d08b34 && mkdir -p build && cd build && cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$(pwd) .. && make && make install/strip ) && ( git clone -b tdlib-1.8.34 https://github.com/667bdrm/tdlib-purple.git ; mkdir -p tdlib-purple/build && cd tdlib-purple/build && cmake -DCMAKE_BUILD_TYPE=Release -DTd_DIR=/tmp/td/build/lib/cmake/Td/ -DNoVoip=1 .. && make install/strip DESTDIR=/tmp/out install)
-
 		
-FROM debian:trixie-slim as production
+FROM debian:bullseye-slim as production
 
 EXPOSE 8080
 VOLUME ["/etc/spectrum2/transports", "/var/lib/spectrum2"]
 
 RUN apt-get update -qq
-RUN apt-get install --no-install-recommends -y curl
+RUN apt-get install --no-install-recommends -y curl ca-certificates gnupg1 gpg gpg-agent
+
+RUN echo "deb [signed-by=/etc/apt/trusted.gpg.d/spectrumim.gpg] https://packages.spectrum.im/spectrum2/ bullseye main" | tee -a /etc/apt/sources.list
+RUN curl -fsSL https://packages.spectrum.im/packages.key | gpg --dearmor -o /etc/apt/trusted.gpg.d/spectrumim.gpg
 RUN apt-get update -qq
 
 COPY --from=staging spectrum2/packaging/debian/*.deb /tmp/
 
 RUN echo "---> Installing libpurple plugins" && \
 		DEBIAN_FRONTEND=noninteractive apt install --no-install-recommends -y \
+		pidgin-sipe \
+		libpurple-telegram-tdlib \
+		libtdjson1.7.9 \
 		purple-discord \
 		purple-facebook \
 		libmarkdown2 \
+		skypeweb \
 		libogg0 libopusfile0 \
 		/tmp/*.deb \
 		nodejs \