diff --git a/flatdeb-builder/Dockerfile b/flatdeb-builder/Dockerfile
index c8e018e1f5d4f32fcad203b3cd250cd0c5a84932..9116dd3f640b6fab0ff493035bb4d53c0748078c 100644
--- a/flatdeb-builder/Dockerfile
+++ b/flatdeb-builder/Dockerfile
@@ -2,41 +2,6 @@ ARG REGISTRY=registry.gitlab.apertis.org/infrastructure/apertis-docker-images
 ARG RELEASE
 ARG TAG=latest
 
-# Build Debos from source to use the wip/uml fakemachine branch
-# with the UML backend
-FROM debian:buster-slim AS debos-builder
-ENV DEBIAN_FRONTEND=noninteractive
-ENV GOPATH=/usr/local/go
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-        ca-certificates \
-        gcc \
-        git \
-        golang-go \
-        libc6-dev \
-        libostree-dev && \
-    rm -rf /var/lib/apt/lists/*
-RUN go get -v -d github.com/go-debos/debos/cmd/debos
-RUN git -C ${GOPATH}/src/github.com/go-debos/debos checkout -b uml d2ab9d3b08056c416bfbcd63c01199e14b2fc3b9 && \
-    git -C ${GOPATH}/src/github.com/go-debos/fakemachine checkout wip/uml && \
-    go install github.com/go-debos/debos/cmd/debos
-
-# Build the slirp helpers, needed by UML for unprivileged networking
-FROM rust:1.42-slim-buster AS slirp-builder
-RUN echo 'deb http://deb.debian.org/debian bullseye main' > /etc/apt/sources.list.d/debian-bullseye.list && \
-    printf 'Package: *\nPin: release a=testing\nPin-Priority: 400\n' > /etc/apt/preferences.d/50-testing && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends \
-        git \
-        libdbus-1-dev \
-        libglib2.0-dev \
-        libslirp-dev \
-        pkg-config && \
-    rm -rf /var/lib/apt/lists/*
-RUN git clone https://gitlab.freedesktop.org/sjoerd/libslirp-rs -b wip/sjoerd/slirp-seq /tmp/libslirp-rs && \
-    cd /tmp/libslirp-rs && \
-    cargo install --all-features --verbose --path . --root /usr/local
-
 # Build the main image
 FROM $REGISTRY/$RELEASE-base:$TAG
 ARG RELEASE
@@ -47,7 +12,6 @@ ENV LC_ALL C.UTF-8
 ENV HOME="/scratch"
 
 ENV DEBIAN_FRONTEND=noninteractive
-ENV GOPATH=/usr/local/go
 
 # Need tmp to be somewhere we can write
 # It needs to be a tmpfs with exec enabled
@@ -61,12 +25,14 @@ RUN apt-get update && \
         binutils \
         ca-certificates \
         curl \
+        debos \
         devscripts \
         elfutils \
         flatpak \
         flatpak-builder \
         git \
         libnss-wrapper \
+        libslirp-helper \
         linux-image-amd64 \
         openssh-client \
         ostree \
@@ -80,27 +46,10 @@ RUN apt-get update && \
         qemu-utils \
         qemu-user-static \
         rsync \
-        systemd-container \
         time \
         user-mode-linux \
         udev
 
-# Create /lib/modules as fakemachine will try to mount the uml modules at that
-# location
-RUN mkdir -p /lib/modules
-
-# FIXME: move to a packaged version
-RUN apt-get update  && \
-    apt-get install --no-install-recommends -y busybox systemd-container debootstrap
-ENV PATH=$PATH:/usr/local/go/bin
-COPY bin/debos-wrapper /usr/bin/debos
-COPY --from=debos-builder ${GOPATH}/bin/debos ${GOPATH}/bin/debos.real
-
-# FIXME: move to a packaged version
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends libslirp0
-COPY --from=slirp-builder /usr/local/bin/* /usr/local/bin/
-
 # FIXME: move to a packaged version
 RUN git clone --branch apertis/$RELEASE --depth 1 https://gitlab.apertis.org/infrastructure/apertis-flatdeb.git /opt/apertis-flatdeb
 
diff --git a/flatdeb-builder/bin/debos-wrapper b/flatdeb-builder/bin/debos-wrapper
deleted file mode 100755
index 235abd690cb0667e2b4efd5b5fc63228883d88fe..0000000000000000000000000000000000000000
--- a/flatdeb-builder/bin/debos-wrapper
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-
-set -e
-
-if [ -f /tmp/libslirp ]; then
-    rm /tmp/libslirp
-fi
-
-slirp-seq --listen-seqsocket-path=/tmp/libslirp \
-          --exit-with-parent &
-
-
-exec debos.real "$@"
diff --git a/image-builder/Dockerfile b/image-builder/Dockerfile
index c01bf872393afc25623ddae41ca4d6db222dd653..03ed1529d709f1b79ff4dcafc6fe820175782684 100644
--- a/image-builder/Dockerfile
+++ b/image-builder/Dockerfile
@@ -2,41 +2,6 @@ ARG REGISTRY=registry.gitlab.apertis.org/infrastructure/apertis-docker-images
 ARG RELEASE
 ARG TAG=latest
 
-# Build Debos from source to use the wip/uml fakemachine branch
-# with the UML backend
-FROM debian:buster-slim AS debos-builder
-ENV DEBIAN_FRONTEND=noninteractive
-ENV GOPATH=/usr/local/go
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-        ca-certificates \
-        gcc \
-        git \
-        golang-go \
-        libc6-dev \
-        libostree-dev && \
-    rm -rf /var/lib/apt/lists/*
-RUN go get -v -d github.com/go-debos/debos/cmd/debos
-RUN git -C ${GOPATH}/src/github.com/go-debos/debos checkout -b uml d2ab9d3b08056c416bfbcd63c01199e14b2fc3b9 && \
-    git -C ${GOPATH}/src/github.com/go-debos/fakemachine checkout wip/uml && \
-    go install github.com/go-debos/debos/cmd/debos
-
-# Build the slirp helpers, needed by UML for unprivileged networking
-FROM rust:1.42-slim-buster AS slirp-builder
-RUN echo 'deb http://deb.debian.org/debian bullseye main' > /etc/apt/sources.list.d/debian-bullseye.list && \
-    printf 'Package: *\nPin: release a=testing\nPin-Priority: 400\n' > /etc/apt/preferences.d/50-testing && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends \
-        git \
-        libdbus-1-dev \
-        libglib2.0-dev \
-        libslirp-dev \
-        pkg-config && \
-    rm -rf /var/lib/apt/lists/*
-RUN git clone https://gitlab.freedesktop.org/sjoerd/libslirp-rs -b wip/sjoerd/slirp-seq /tmp/libslirp-rs && \
-    cd /tmp/libslirp-rs && \
-    cargo install --all-features --verbose --path . --root /usr/local
-
 # Build the main image
 FROM $REGISTRY/$RELEASE-base:$TAG
 ENV LANG=C.UTF-8
@@ -46,7 +11,6 @@ ENV LC_ALL C.UTF-8
 ENV HOME="/scratch"
 
 ENV DEBIAN_FRONTEND=noninteractive
-ENV GOPATH=/usr/local/go
 
 # Need tmp to be somewhere we can write
 # It needs to be a tmpfs with exec enabled
@@ -64,6 +28,7 @@ RUN apt-get update && \
         ca-certificates \
         cryptsetup \
         curl \
+        debos \
         device-tree-compiler \
         devscripts \
         dosfstools \
@@ -73,6 +38,8 @@ RUN apt-get update && \
         jq \
         kmod \
         libnss-wrapper \
+        libslirp-helper \
+        linux-image-amd64 \
         lqa \
         mtd-utils \
         openssh-client \
@@ -84,27 +51,10 @@ RUN apt-get update && \
         qemu-utils \
         qemu-user-static \
         rsync \
-        systemd-container \
         user-mode-linux \
         u-boot-tools \
         udev
 
-# Create /lib/modules as fakemachine will try to mount the uml modules at that
-# location
-RUN mkdir -p /lib/modules
-
-# FIXME: move to a packaged version
-RUN apt-get update  && \
-    apt-get install --no-install-recommends -y busybox systemd-container debootstrap
-ENV PATH=$PATH:/usr/local/go/bin
-COPY bin/debos-wrapper /usr/bin/debos
-COPY --from=debos-builder ${GOPATH}/bin/debos ${GOPATH}/bin/debos.real
-
-# FIXME: move to a packaged version
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends libslirp0
-COPY --from=slirp-builder /usr/local/bin/* /usr/local/bin/
-
 # Defer libnss-unknown package installation to the end to avoid possible UID/GID problems
 RUN apt-get update  && \
     apt-get install --no-install-recommends -y libnss-unknown
diff --git a/image-builder/bin/debos-wrapper b/image-builder/bin/debos-wrapper
deleted file mode 100755
index 235abd690cb0667e2b4efd5b5fc63228883d88fe..0000000000000000000000000000000000000000
--- a/image-builder/bin/debos-wrapper
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-
-set -e
-
-if [ -f /tmp/libslirp ]; then
-    rm /tmp/libslirp
-fi
-
-slirp-seq --listen-seqsocket-path=/tmp/libslirp \
-          --exit-with-parent &
-
-
-exec debos.real "$@"