diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index e786a5d..0000000
--- a/Dockerfile
+++ /dev/null
@@ -1,86 +0,0 @@
-FROM ubuntu:18.04
-
-ENV LC_ALL=C.UTF-8 LANG=C.UTF-8
-ENV PIP_DEFAULT_TIMEOUT=120
-
-ENV OCRD_OLENA_VERSION 1.2.0
-ENV TESSDATA_BEST_VERSION 4.0.0
-ENV TESSDATA_PREFIX /usr/local/share/tessdata
-
-
-RUN echo "APT::Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries && \
-    apt-get update && \
-    apt-get install -y \
-      curl xz-utils \
-      python3-pip \
-      git \
-      software-properties-common \
-# For clstm on Ubuntu 19.04:
-      swig libeigen3-dev libpng-dev libprotobuf-dev \
-# For cv2:
-      libsm6 libxrender1 \
-# For ocrd_olena:
-      imagemagick \
-# XML utils
-      libxml2-utils \
-      xmlstarlet \
-    && \
-    apt-get clean && rm -rf /var/lib/apt/lists/*
-
-
-# Install Leptonica and Tesseract.
-RUN add-apt-repository ppa:alex-p/tesseract-ocr && \
-    apt-get update && \
-    apt-get install -y \
-        tesseract-ocr \
-        libtesseract-dev \
-    && \
-    apt-get clean && rm -rf /var/lib/apt/lists/*
-
-# Set up OCR-D logging
-COPY ocrd_logging.py /etc/
-
-
-# Build ocrd_olena
-# XXX .deb needs an update
-RUN curl -sSL --retry 3 -O https://qurator-data.de/~mike.gerber/olena_2.1-0+ocrd-git/olena-bin_2.1-0+ocrd-git_amd64.deb && \
-    dpkg -i --force-depends olena-bin_2.1-0+ocrd-git_amd64.deb && \
-    rm -f olena-bin_2.1-0+ocrd-git_amd64.deb && \
-    apt-get update && \
-    apt-get -f install -y && \
-    apt-get clean && rm -rf /var/lib/apt/lists/*
-RUN pip3 install --no-cache-dir --upgrade pip && \
-   curl -sSL --retry 3 -o ocrd_olena.tar.gz https://github.com/OCR-D/ocrd_olena/archive/v${OCRD_OLENA_VERSION}.tar.gz && \
-   mkdir ocrd_olena && \
-   tar xvz -C ocrd_olena --strip-components=1 -f ocrd_olena.tar.gz && \
-   cd ocrd_olena && \
-   sed -i 's/^install: deps$/install:/' Makefile && \
-   pip3 install --no-cache-dir --use-feature=2020-resolver ocrd && \
-   make install PREFIX=/usr/local && \
-   cd .. && rm -rf ocrd_olena ocrd_olena.tar.gz
-
-
-# Copy OCR models
-RUN mkdir -p /var/lib/calamari-models
-COPY data/calamari-models/GT4HistOCR /var/lib/calamari-models/GT4HistOCR
-RUN mkdir -p $TESSDATA_PREFIX
-ADD data/mirror/github.com/tesseract-ocr/tessdata_best/archive/${TESSDATA_BEST_VERSION}-repacked.tar.gz $TESSDATA_PREFIX/
-COPY data/tesseract-models/GT4HistOCR/GT4HistOCR_2000000.traineddata $TESSDATA_PREFIX/
-COPY data/textline_detection /var/lib/textline_detection
-
-
-# Install requirements
-# Using pipdeptree here to get more info than from pip3 check
-COPY requirements.txt /tmp/
-RUN pip3 install --no-cache-dir --upgrade pip && \
-    pip3 install --no-cache-dir --use-feature=2020-resolver -r /tmp/requirements.txt && \
-    pip3 install --no-cache-dir pipdeptree && \
-    pipdeptree -w fail
-
-
-COPY my_ocrd_workflow /usr/bin/
-COPY xsd/*            /usr/share/xml/
-
-
-WORKDIR /data
-ENTRYPOINT ["/usr/bin/my_ocrd_workflow"]
diff --git a/Dockerfile-boxed-base b/Dockerfile-boxed-base
new file mode 100644
index 0000000..3fad690
--- /dev/null
+++ b/Dockerfile-boxed-base
@@ -0,0 +1,41 @@
+FROM ubuntu:18.04
+
+ENV LC_ALL=C.UTF-8 LANG=C.UTF-8
+ENV PIP_DEFAULT_TIMEOUT=120
+
+
+RUN echo "APT::Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries && \
+    apt-get update && \
+    apt-get install -y \
+      curl xz-utils \
+      python3-pip \
+# For add-apt-repository:
+      software-properties-common \
+# XML utils
+      libxml2-utils \
+      xmlstarlet \
+    && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+
+# Set up OCR-D logging
+COPY ocrd_logging.py /etc/
+
+
+# Build pip installable stuff
+RUN pip3 install --no-cache-dir --upgrade pip && \
+    pip3 install --no-cache-dir \
+# Resolve conflicts early:
+        'setuptools >= 41.0.0' \
+        'ocrd >= 2.13.1'
+
+
+# Check pip dependencies
+RUN pip3 check
+
+
+WORKDIR /data
+
+# Default command
+CMD ['ocrd']
diff --git a/Dockerfile-boxed-dinglehopper b/Dockerfile-boxed-dinglehopper
new file mode 100644
index 0000000..aa4749c
--- /dev/null
+++ b/Dockerfile-boxed-dinglehopper
@@ -0,0 +1,18 @@
+FROM boxed-base
+
+
+ENV DINGLEHOPPER_COMMIT 2b98f69
+
+
+# Build pip installable stuff
+RUN pip3 install --no-cache-dir \
+# Now the real stuff:
+    https://github.com/qurator-spk/dinglehopper/archive/$DINGLEHOPPER_COMMIT.tar.gz
+
+
+# Check pip dependencies
+RUN pip3 check
+
+
+# Default command
+CMD ["ocrd-dinglehopper"]
diff --git a/Dockerfile-boxed-ocrd_calamari b/Dockerfile-boxed-ocrd_calamari
new file mode 100644
index 0000000..a64a0c1
--- /dev/null
+++ b/Dockerfile-boxed-ocrd_calamari
@@ -0,0 +1,24 @@
+FROM boxed-base
+
+
+# Build pip installable stuff
+RUN pip3 install --no-cache-dir \
+# Resolve conflicts early:
+        'tensorflow-gpu == 1.15.*' \
+        'calamari-ocr == 0.3.5' \
+# Now the real stuff:
+        'ocrd_calamari >= 0.0.7'
+
+
+# Copy OCR models
+RUN mkdir -p /var/lib/calamari-models
+COPY data/calamari-models/GT4HistOCR /var/lib/calamari-models/GT4HistOCR
+
+
+
+# Check pip dependencies
+RUN pip3 check
+
+
+# Default command
+CMD ["ocrd-calamari-recognize"]
diff --git a/Dockerfile-boxed-ocrd_olena b/Dockerfile-boxed-ocrd_olena
new file mode 100644
index 0000000..98f36bf
--- /dev/null
+++ b/Dockerfile-boxed-ocrd_olena
@@ -0,0 +1,33 @@
+FROM boxed-base
+
+ENV OCRD_OLENA_VERSION 1.2.0
+
+# Build ocrd_olena
+RUN apt-get update && \
+    apt-get install -y \
+      imagemagick \
+    && \
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+RUN curl -sSL --retry 3 -O https://qurator-data.de/~mike.gerber/olena_2.1-0+ocrd-git/olena-bin_2.1-0+ocrd-git_amd64.deb && \
+    dpkg -i --force-depends olena-bin_2.1-0+ocrd-git_amd64.deb && \
+    rm -f olena-bin_2.1-0+ocrd-git_amd64.deb && \
+    apt-get update && \
+    apt-get -f install -y && \
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+RUN pip3 install --no-cache-dir --upgrade pip && \
+   curl -sSL --retry 3 -o ocrd_olena.tar.gz https://github.com/OCR-D/ocrd_olena/archive/v${OCRD_OLENA_VERSION}.tar.gz && \
+   mkdir ocrd_olena && \
+   tar xvz -C ocrd_olena --strip-components=1 -f ocrd_olena.tar.gz && \
+   cd ocrd_olena && \
+   sed -i 's/^install: deps$/install:/' Makefile && \
+   pip3 install --no-cache-dir --use-feature=2020-resolver ocrd && \
+   make install PREFIX=/usr/local && \
+   cd .. && rm -rf ocrd_olena ocrd_olena.tar.gz
+
+
+# Check pip dependencies
+RUN pip3 check
+
+
+# Default command
+CMD ['ocrd-olena-binarize']
diff --git a/Dockerfile-boxed-ocrd_tesserocr b/Dockerfile-boxed-ocrd_tesserocr
new file mode 100644
index 0000000..c0ca4ff
--- /dev/null
+++ b/Dockerfile-boxed-ocrd_tesserocr
@@ -0,0 +1,35 @@
+FROM boxed-base
+
+
+ENV TESSDATA_BEST_VERSION 4.0.0
+ENV TESSDATA_PREFIX /usr/local/share/tessdata
+
+
+# Install Leptonica and Tesseract.
+RUN add-apt-repository ppa:alex-p/tesseract-ocr && \
+    apt-get update && \
+    apt-get install -y \
+        tesseract-ocr \
+        libtesseract-dev \
+    && \
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+
+
+# Copy OCR models
+RUN mkdir -p $TESSDATA_PREFIX
+ADD data/mirror/github.com/tesseract-ocr/tessdata_best/archive/${TESSDATA_BEST_VERSION}-repacked.tar.gz $TESSDATA_PREFIX/
+COPY data/tesseract-models/GT4HistOCR/GT4HistOCR_2000000.traineddata $TESSDATA_PREFIX/
+
+
+# Build pip installable stuff
+RUN pip3 install --no-cache-dir \
+# Now the real stuff:
+    'ocrd_tesserocr >= 0.9.0'
+
+
+# Check pip dependencies
+RUN pip3 check
+
+
+# Default command
+CMD ["ocrd-tesserocr-recognize"]
diff --git a/Dockerfile-boxed-sbb_textline_detector b/Dockerfile-boxed-sbb_textline_detector
new file mode 100644
index 0000000..4274725
--- /dev/null
+++ b/Dockerfile-boxed-sbb_textline_detector
@@ -0,0 +1,22 @@
+FROM boxed-base
+
+
+ENV SBB_TEXTLINE_DETECTOR_COMMIT 8b01d9e
+
+
+# Build pip installable stuff
+RUN pip3 install --no-cache-dir \
+# Now the real stuff:
+    https://github.com/qurator-spk/sbb_textline_detector/archive/$SBB_TEXTLINE_DETECTOR_COMMIT.tar.gz
+
+
+# Copy OCR models
+COPY data/textline_detection /var/lib/textline_detection
+
+
+# Check pip dependencies
+RUN pip3 check
+
+
+# Default command
+CMD ["ocrd-sbb-textline-detector"]
diff --git a/build b/build
index 227a914..3a50a4d 100755
--- a/build
+++ b/build
@@ -21,4 +21,9 @@ get_from_web() {
 handle_data
 
 
-docker build --cache-from my_ocrd_workflow -t my_ocrd_workflow .
+docker build -t boxed-base                  -f Dockerfile-boxed-base                  .
+docker build -t boxed-ocrd_calamari         -f Dockerfile-boxed-ocrd_calamari         .
+docker build -t boxed-dinglehopper          -f Dockerfile-boxed-dinglehopper          .
+docker build -t boxed-ocrd_olena            -f Dockerfile-boxed-ocrd_olena            .
+docker build -t boxed-ocrd_tesserocr        -f Dockerfile-boxed-ocrd_tesserocr        .
+docker build -t boxed-sbb_textline_detector -f Dockerfile-boxed-sbb_textline_detector .
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index d97256c..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-tensorflow-gpu < 2.0  # Needed for sbb_text_linedetector
-
-ocrd >= 2.13.1
-
-# XXX See https://github.com/OCR-D/ocrd_tesserocr/issues/135
-# ocrd_tesserocr >= 0.8.XXX
-https://github.com/mikegerber/ocrd_tesserocr/archive/fix/set-pcgtsid.tar.gz
-
-ocrd_calamari >= 0.0.7
-
-https://github.com/qurator-spk/sbb_textline_detector/archive/8b01d9e.tar.gz
-
-https://github.com/qurator-spk/dinglehopper/archive/2b98f69.tar.gz
diff --git a/run b/run
index 7fbf16d..5fb76c4 100755
--- a/run
+++ b/run
@@ -1,31 +1,42 @@
-#!/bin/sh
-# Run the my_ocrd_workflow container on the current workspace
+#!/bin/bash
 
 set -e  # Abort on error
 
-DOCKER_IMAGE=${DOCKER_IMAGE:-my_ocrd_workflow:latest}  # default to locally built
-
-if echo "$DOCKER_IMAGE" | grep -q "/"; then
-  docker pull "$DOCKER_IMAGE"
-fi
+self=`realpath $0`
+self_dir=`dirname "$self"`
 
 
-# XXX Work around podman vs docker uid behaviour
+# Docker run options
+docker_run_options="--rm -t"
+docker_run_options="$docker_run_options --mount type=bind,src=\"$(pwd)\",target=/data"
+# In podman, the container always runs as the real user == uid 0 in container
 if docker -v 2>&1 | grep -q podman; then
   user="0:0"
 else
   user="`id -u`:`id -g`"
 fi
-
-
-# The container currently needs to run privileged to allow it to read from e.g.
+docker_run_options="$docker_run_options --user $user"
+docker_run_options="$docker_run_options -e LOG_LEVEL=$LOG_LEVEL"
+# The containers currently need to run privileged to allow it to read from e.g.
 # /home on SELinux secured systems such as Fedora. We might want to use udica
 # instead in the future.
+docker_run_options="$docker_run_options --privileged=true"
+
+
+# Build aliases for the containerized ocrd processors
+build_alias() {
+  local command=$1
+  local docker_image=$2
+
+  alias $command="docker run $docker_run_options $docker_image $command"
+}
+shopt -s expand_aliases  # Required for non-interactive shells
+build_alias ocrd                       boxed-base
+build_alias ocrd-olena-binarize        boxed-ocrd_olena
+build_alias ocrd-sbb-textline-detector boxed-sbb_textline_detector
+build_alias ocrd-calamari-recognize    boxed-ocrd_calamari
+build_alias ocrd-tesserocr-recognize   boxed-ocrd_tesserocr
+build_alias ocrd-dinglehopper          boxed-dinglehopper
+
 
-docker run --privileged=true --rm -t \
-  \
-  --user $user \
-  --mount type=bind,src="$(pwd)",target=/data \
-  \
-  -e LOG_LEVEL=$LOG_LEVEL \
-  $DOCKER_IMAGE "$@"
+. $self_dir/my_ocrd_workflow
diff --git a/run-docker-hub b/run-docker-hub
deleted file mode 100755
index 9e4339e..0000000
--- a/run-docker-hub
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/bin/sh
-# Run the my_ocrd_workflow container on the current workspace
-
-DOCKER_IMAGE=mikegerber/my_ocrd_workflow:stable `dirname $0`/run "$@"