diff --git a/.architectures-lib b/.architectures-lib
new file mode 100644
index 0000000..05e126a
--- /dev/null
+++ b/.architectures-lib
@@ -0,0 +1,57 @@
+#!/usr/bin/env bash
+
+_awkArch() {
+	local awkExpr="$1"; shift
+	awk "$@" "/^#|^\$/ { next } $awkExpr" release-architectures
+}
+
+dpkgArches() {
+	_awkArch '{ print $2 }'
+}
+
+dpkgToBashbrewArch() {
+	local dpkgArch="$1"; shift
+	_awkArch '$2 == dpkgArch { print $1; exit }' -v dpkgArch="$dpkgArch"
+}
+
+dpkgToPyPyArch() {
+	local dpkgArch="$1"; shift
+	_awkArch '$2 == dpkgArch { print $3; exit }' -v dpkgArch="$dpkgArch"
+}
+
+_generateParentRepoToArches() {
+	local repo="$1"; shift
+	local officialImagesUrl='https://github.com/docker-library/official-images/raw/master/library/'
+
+	eval "declare -g -A parentRepoToArches=( $(
+		find -name 'Dockerfile' -exec awk '
+				toupper($1) == "FROM" && $2 !~ /^('"$repo"'|scratch|microsoft\/[^:]+)(:|$)/ {
+					print "'"$officialImagesUrl"'" $2
+				}
+			' '{}' + \
+			| sort -u \
+			| xargs bashbrew cat --format '[{{ .RepoName }}:{{ .TagName }}]="{{ join " " .TagEntry.Architectures }}"'
+	) )"
+}
+_generateParentRepoToArches 'pypy'
+
+hasBashbrewArch() {
+	local dir="$1"; shift
+	local bashbrewArch="$1"; shift
+	grep -qE "^# ${bashbrewArch}\$" "$dir/Dockerfile"
+}
+
+parentArches() {
+	local dir="$1"; shift # "2", "3/slim", etc
+
+	local parent="$(awk 'toupper($1) == "FROM" { print $2 }' "$dir/Dockerfile")"
+	local parentArches="${parentRepoToArches[$parent]:-}"
+
+	local arches=()
+	for arch in $parentArches; do
+		if hasBashbrewArch "$dir" "$arch"; then
+			arches+=( "$arch" )
+		fi
+	done
+	echo "${arches[*]:-}"
+}
diff --git a/2/Dockerfile b/2/Dockerfile
index 54779d1..5f19570 100644
--- a/2/Dockerfile
+++ b/2/Dockerfile
@@ -14,16 +14,32 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PYPY_VERSION 5.8.0
-ENV PYPY_SHA256SUM 6274292d0e954a2609b15978cde6efa30942ba20aa5d2acbbf1c70c0a54e9b1e
 
 # if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
 ENV PYTHON_PIP_VERSION 9.0.1
 
 RUN set -ex; \
-	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/pypy2-v${PYPY_VERSION}-linux64.tar.bz2"; \
-	echo "$PYPY_SHA256SUM *pypy.tar.bz2" | sha256sum -c; \
+	\
+# this "case" statement is generated via "update.sh"
+	dpkgArch="$(dpkg --print-architecture)"; \
+	case "${dpkgArch##*-}" in \
+# amd64
+		amd64) pypyArch='linux64'; sha256='6274292d0e954a2609b15978cde6efa30942ba20aa5d2acbbf1c70c0a54e9b1e' ;; \
+# arm32v5
+		armel) pypyArch='linux-armel'; sha256='28b7fd0cc7418ffc66c71520728e87941be40ebf4b82675c57e25598a2a702b0' ;; \
+# arm32v7
+		armhf) pypyArch='linux-armhf-raring'; sha256='ddceca9c5c9a456d4bf1beab177660adffbbdf255a922244e1cc05f20318be46' ;; \
+# i386
+		i386) pypyArch='linux32'; sha256='a0b125a5781f7e5ddfc3baca46503b14f4ee6a0e234e8d72bfcf3afdf4120bef' ;; \
+		*) echo >&2 "error: current architecture ($dpkgArch) does not have a corresponding PyPy $PYPY_VERSION binary release"; exit 1 ;; \
+	esac; \
+	\
+	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/pypy2-v${PYPY_VERSION}-${pypyArch}.tar.bz2"; \
+	echo "$sha256 *pypy.tar.bz2" | sha256sum -c; \
 	tar -xjC /usr/local --strip-components=1 -f pypy.tar.bz2; \
-	rm pypy.tar.bz2
+	rm pypy.tar.bz2; \
+	\
+	pypy --version
 
 RUN set -ex; \
 	\
diff --git a/2/slim/Dockerfile b/2/slim/Dockerfile
index b1cd204..0167936 100644
--- a/2/slim/Dockerfile
+++ b/2/slim/Dockerfile
@@ -16,24 +16,39 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PYPY_VERSION 5.8.0
-ENV PYPY_SHA256SUM 6274292d0e954a2609b15978cde6efa30942ba20aa5d2acbbf1c70c0a54e9b1e
 
 # if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
 ENV PYTHON_PIP_VERSION 9.0.1
 
 RUN set -ex; \
 	\
+# this "case" statement is generated via "update.sh"
+	dpkgArch="$(dpkg --print-architecture)"; \
+	case "${dpkgArch##*-}" in \
+# amd64
+		amd64) pypyArch='linux64'; sha256='6274292d0e954a2609b15978cde6efa30942ba20aa5d2acbbf1c70c0a54e9b1e' ;; \
+# arm32v5
+		armel) pypyArch='linux-armel'; sha256='28b7fd0cc7418ffc66c71520728e87941be40ebf4b82675c57e25598a2a702b0' ;; \
+# arm32v7
+		armhf) pypyArch='linux-armhf-raring'; sha256='ddceca9c5c9a456d4bf1beab177660adffbbdf255a922244e1cc05f20318be46' ;; \
+# i386
+		i386) pypyArch='linux32'; sha256='a0b125a5781f7e5ddfc3baca46503b14f4ee6a0e234e8d72bfcf3afdf4120bef' ;; \
+		*) echo >&2 "error: current architecture ($dpkgArch) does not have a corresponding PyPy $PYPY_VERSION binary release"; exit 1 ;; \
+	esac; \
+	\
 	fetchDeps=' \
 		bzip2 \
 		wget \
 	'; \
 	apt-get update && apt-get install -y $fetchDeps --no-install-recommends && rm -rf /var/lib/apt/lists/*; \
 	\
-	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/pypy2-v${PYPY_VERSION}-linux64.tar.bz2"; \
-	echo "$PYPY_SHA256SUM *pypy.tar.bz2" | sha256sum -c; \
+	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/pypy2-v${PYPY_VERSION}-${pypyArch}.tar.bz2"; \
+	echo "$sha256 *pypy.tar.bz2" | sha256sum -c; \
 	tar -xjC /usr/local --strip-components=1 -f pypy.tar.bz2; \
 	rm pypy.tar.bz2; \
 	\
+	pypy --version; \
+	\
 	wget -O get-pip.py 'https://bootstrap.pypa.io/get-pip.py'; \
 	\
 	pypy get-pip.py \
diff --git a/3/Dockerfile b/3/Dockerfile
index 1e500d3..875070e 100644
--- a/3/Dockerfile
+++ b/3/Dockerfile
@@ -14,16 +14,26 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PYPY_VERSION 5.8.0
-ENV PYPY_SHA256SUM 57d871a7f1135719c138cee4e3533c3275d682a76a40ff668e95150c65923035
 
 # if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
 ENV PYTHON_PIP_VERSION 9.0.1
 
 RUN set -ex; \
-	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/pypy3-v${PYPY_VERSION}-linux64.tar.bz2"; \
-	echo "$PYPY_SHA256SUM *pypy.tar.bz2" | sha256sum -c; \
+	\
+# this "case" statement is generated via "update.sh"
+	dpkgArch="$(dpkg --print-architecture)"; \
+	case "${dpkgArch##*-}" in \
+# amd64
+		amd64) pypyArch='linux64'; sha256='57d871a7f1135719c138cee4e3533c3275d682a76a40ff668e95150c65923035' ;; \
+		*) echo >&2 "error: current architecture ($dpkgArch) does not have a corresponding PyPy $PYPY_VERSION binary release"; exit 1 ;; \
+	esac; \
+	\
+	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/pypy3-v${PYPY_VERSION}-${pypyArch}.tar.bz2"; \
+	echo "$sha256 *pypy.tar.bz2" | sha256sum -c; \
 	tar -xjC /usr/local --strip-components=1 -f pypy.tar.bz2; \
-	rm pypy.tar.bz2
+	rm pypy.tar.bz2; \
+	\
+	pypy3 --version
 
 RUN set -ex; \
 	\
diff --git a/3/slim/Dockerfile b/3/slim/Dockerfile
index aa61671..503fefa 100644
--- a/3/slim/Dockerfile
+++ b/3/slim/Dockerfile
@@ -16,24 +16,33 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PYPY_VERSION 5.8.0
-ENV PYPY_SHA256SUM 57d871a7f1135719c138cee4e3533c3275d682a76a40ff668e95150c65923035
 
 # if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
 ENV PYTHON_PIP_VERSION 9.0.1
 
 RUN set -ex; \
 	\
+# this "case" statement is generated via "update.sh"
+	dpkgArch="$(dpkg --print-architecture)"; \
+	case "${dpkgArch##*-}" in \
+# amd64
+		amd64) pypyArch='linux64'; sha256='57d871a7f1135719c138cee4e3533c3275d682a76a40ff668e95150c65923035' ;; \
+		*) echo >&2 "error: current architecture ($dpkgArch) does not have a corresponding PyPy $PYPY_VERSION binary release"; exit 1 ;; \
+	esac; \
+	\
 	fetchDeps=' \
 		bzip2 \
 		wget \
 	'; \
 	apt-get update && apt-get install -y $fetchDeps --no-install-recommends && rm -rf /var/lib/apt/lists/*; \
 	\
-	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/pypy3-v${PYPY_VERSION}-linux64.tar.bz2"; \
-	echo "$PYPY_SHA256SUM *pypy.tar.bz2" | sha256sum -c; \
+	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/pypy3-v${PYPY_VERSION}-${pypyArch}.tar.bz2"; \
+	echo "$sha256 *pypy.tar.bz2" | sha256sum -c; \
 	tar -xjC /usr/local --strip-components=1 -f pypy.tar.bz2; \
 	rm pypy.tar.bz2; \
 	\
+	pypy3 --version; \
+	\
 	wget -O get-pip.py 'https://bootstrap.pypa.io/get-pip.py'; \
 	\
 	pypy3 get-pip.py \
diff --git a/Dockerfile-slim.template b/Dockerfile-slim.template
new file mode 100644
index 0000000..e806b38
--- /dev/null
+++ b/Dockerfile-slim.template
@@ -0,0 +1,54 @@
+FROM debian:jessie-slim
+
+# ensure local pypy is preferred over distribution python
+ENV PATH /usr/local/bin:$PATH
+
+# http://bugs.python.org/issue19846
+# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
+ENV LANG C.UTF-8
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+		ca-certificates \
+		libexpat1 \
+		libffi6 \
+		libgdbm3 \
+		libsqlite3-0 \
+	&& rm -rf /var/lib/apt/lists/*
+
+ENV PYPY_VERSION %%PYPY_VERSION%%
+
+# if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
+ENV PYTHON_PIP_VERSION 9.0.1
+
+RUN set -ex; \
+	\
+# this "case" statement is generated via "update.sh"
+	%%ARCH-CASE%%; \
+	\
+	fetchDeps=' \
+		bzip2 \
+		wget \
+	'; \
+	apt-get update && apt-get install -y $fetchDeps --no-install-recommends && rm -rf /var/lib/apt/lists/*; \
+	\
+	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/%%TAR%%-v${PYPY_VERSION}-${pypyArch}.tar.bz2"; \
+	echo "$sha256 *pypy.tar.bz2" | sha256sum -c; \
+	tar -xjC /usr/local --strip-components=1 -f pypy.tar.bz2; \
+	rm pypy.tar.bz2; \
+	\
+	%%CMD%% --version; \
+	\
+	wget -O get-pip.py 'https://bootstrap.pypa.io/get-pip.py'; \
+	\
+	%%CMD%% get-pip.py \
+		--disable-pip-version-check \
+		--no-cache-dir \
+		"pip==$PYTHON_PIP_VERSION" \
+	; \
+	pip --version; \
+	\
+	rm -f get-pip.py; \
+	\
+	apt-get purge -y --auto-remove $fetchDeps
+
+CMD ["%%CMD%%"]
diff --git a/Dockerfile.template b/Dockerfile.template
new file mode 100644
index 0000000..2663f0b
--- /dev/null
+++ b/Dockerfile.template
@@ -0,0 +1,46 @@
+FROM buildpack-deps:jessie
+
+# ensure local pypy is preferred over distribution python
+ENV PATH /usr/local/bin:$PATH
+
+# http://bugs.python.org/issue19846
+# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
+ENV LANG C.UTF-8
+
+# runtime dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+		tcl \
+		tk \
+	&& rm -rf /var/lib/apt/lists/*
+
+ENV PYPY_VERSION %%PYPY_VERSION%%
+
+# if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
+ENV PYTHON_PIP_VERSION 9.0.1
+
+RUN set -ex; \
+	\
+# this "case" statement is generated via "update.sh"
+	%%ARCH-CASE%%; \
+	\
+	wget -O pypy.tar.bz2 "https://bitbucket.org/pypy/pypy/downloads/%%TAR%%-v${PYPY_VERSION}-${pypyArch}.tar.bz2"; \
+	echo "$sha256 *pypy.tar.bz2" | sha256sum -c; \
+	tar -xjC /usr/local --strip-components=1 -f pypy.tar.bz2; \
+	rm pypy.tar.bz2; \
+	\
+	%%CMD%% --version
+
+RUN set -ex; \
+	\
+	wget -O get-pip.py 'https://bootstrap.pypa.io/get-pip.py'; \
+	\
+	%%CMD%% get-pip.py \
+		--disable-pip-version-check \
+		--no-cache-dir \
+		"pip==$PYTHON_PIP_VERSION" \
+	; \
+	pip --version; \
+	\
+	rm -f get-pip.py
+
+CMD ["%%CMD%%"]
diff --git a/generate-stackbrew-library.sh b/generate-stackbrew-library.sh
index cf54e7d..cbfd047 100755
--- a/generate-stackbrew-library.sh
+++ b/generate-stackbrew-library.sh
@@ -1,5 +1,5 @@
-#!/bin/bash
-set -eu
+#!/usr/bin/env bash
+set -Eeuo pipefail
 
 declare -A aliases=(
 	[3]='latest'
@@ -8,6 +8,8 @@ declare -A aliases=(
 self="$(basename "$BASH_SOURCE")"
 cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
 
+source '.architectures-lib'
+
 versions=( */ )
 versions=( "${versions[@]%/}" )
 
@@ -61,26 +63,29 @@ for version in "${versions[@]}"; do
 	done
 	versionAliases+=( $version ${aliases[$version]:-} )
 
-	echo
-	cat <<-EOE
-		Tags: $(join ', ' "${versionAliases[@]}")
-		GitCommit: $commit
-		Directory: $version
-	EOE
+	for variant in '' slim onbuild; do
+		dir="$version${variant:+/$variant}"
+		[ -f "$dir/Dockerfile" ] || continue
 
-	for variant in slim onbuild; do
-		[ -f "$version/$variant/Dockerfile" ] || continue
+		commit="$(dirCommit "$dir")"
 
-		commit="$(dirCommit "$version/$variant")"
+		variantAliases=( "${versionAliases[@]}" )
+		if [ -n "$variant" ]; then
+			variantAliases=( "${variantAliases[@]/%/-$variant}" )
+			variantAliases=( "${variantAliases[@]//latest-/}" )
+		fi
 
-		variantAliases=( "${versionAliases[@]/%/-$variant}" )
-		variantAliases=( "${variantAliases[@]//latest-/}" )
+		case "$variant" in
+			onbuild) variantArches="$(parentArches "$(dirname "$dir")" )" ;;
+			*)       variantArches="$(parentArches "$dir")" ;;
+		esac
 
 		echo
 		cat <<-EOE
 			Tags: $(join ', ' "${variantAliases[@]}")
+			Architectures: $(join ', ' $variantArches)
 			GitCommit: $commit
-			Directory: $version/$variant
+			Directory: $dir
 		EOE
 	done
 done
diff --git a/release-architectures b/release-architectures
new file mode 100644
index 0000000..0778766
--- /dev/null
+++ b/release-architectures
@@ -0,0 +1,14 @@
+# see https://bitbucket.org/pypy/pypy/downloads/
+# and https://pypy.org/download.html#checksums
+
+# bashbrew-arch dpkg-arch pypy-release-arch
+amd64   amd64   linux64
+arm32v5 armel   linux-armel
+arm32v7 armhf   linux-armhf-raring
+i386    i386    linux32
+
+# pypy: error while loading shared libraries: libssl.so.10: cannot open shared object file: No such file or directory
+#ppc64le ppc64el ppc64le
+
+# pypy: error while loading shared libraries: libssl.so.10: cannot open shared object file: No such file or directory
+#s390x   s390x   s390x
diff --git a/update.sh b/update.sh
index 61d8d93..fc7493a 100755
--- a/update.sh
+++ b/update.sh
@@ -3,6 +3,8 @@ set -Eeuo pipefail
 
 cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
 
+source '.architectures-lib'
+
 versions=( "$@" )
 if [ ${#versions[@]} -eq 0 ]; then
 	versions=( */ )
@@ -11,10 +13,32 @@ versions=( "${versions[@]%/}" )
 
 pipVersion="$(curl -fsSL 'https://pypi.org/pypi/pip/json' | jq -r .info.version)"
 
+sha256s="$(curl -fsSL 'http://pypy.org/download.html')"
+scrapeSha256() {
+	local pypy="$1"; shift
+	local fullVersion="$1"; shift
+	local arch="$1"; shift
+
+	# <p>pypy2.7-5.4.0 sha256:</p>
+	# <pre class="literal-block">
+	# ...
+	# bdfea513d59dcd580970cb6f79f3a250d00191fd46b68133d5327e924ca845f8  pypy2-v5.4.0-linux64.tar.bz2
+	# ...
+	# </pre>
+	echo "$sha256s" \
+		| grep -m1 -E '[a-f0-9]{64}  '"$pypy-v$tryVersion"'-'"$arch"'.tar.bz2' \
+		| cut -d' ' -f1
+}
+
+# see http://stackoverflow.com/a/2705678/433558
+sed_escape_rhs() {
+	echo "$@" | sed -e 's/[\/&]/\\&/g' | sed -e ':a;N;$!ba;s/\n/\\n/g'
+}
+
 for version in "${versions[@]}"; do
 	case "$version" in
-		3) pypy='pypy3' ;;
-		2) pypy='pypy2' ;;
+		3) pypy='pypy3'; cmd='pypy3' ;;
+		2) pypy='pypy2'; cmd='pypy' ;;
 		*) echo >&2 "error: unknown pypy variant $version"; exit 1 ;;
 	esac
 
@@ -23,8 +47,7 @@ for version in "${versions[@]}"; do
 	IFS=$'\n'
 	tryVersions=( $(
 		curl -fsSL 'https://bitbucket.org/pypy/pypy/downloads/' \
-			| grep -E "$pypy"'-v([0-9.]+(-alpha[0-9]*)?)-linux64.tar.bz2' \
-			| sed -r 's/^.*'"$pypy"'-v([0-9.]+(-alpha[0-9]*)?)-linux64.tar.bz2.*$/\1/' \
+			| sed -rn 's/^.*'"$pypy"'-v([0-9.]+(-alpha[0-9]*)?)-linux64.tar.bz2.*$/\1/gp' \
 			| sort -rV
 	) )
 	unset IFS
@@ -32,18 +55,8 @@ for version in "${versions[@]}"; do
 	fullVersion=
 	sha256sum=
 	for tryVersion in "${tryVersions[@]}"; do
-		# <p>pypy2.7-5.4.0 sha256:</p>
-		# <pre class="literal-block">
-		# ...
-		# bdfea513d59dcd580970cb6f79f3a250d00191fd46b68133d5327e924ca845f8  pypy2-v5.4.0-linux64.tar.bz2
-		# ...
-		# </pre>
 		if \
-			sha256sum="$(
-				curl -fsSL 'http://pypy.org/download.html' \
-					| grep -m1 -E '[a-f0-9]{64}  '"$pypy-v$tryVersion"'-linux64.tar.bz2' \
-					| cut -d' ' -f1
-			)" \
+			sha256sum="$(scrapeSha256 "$pypy" "$tryVersion" 'linux64')" \
 			&& [ -n "$sha256sum" ] \
 		; then
 			fullVersion="$tryVersion"
@@ -55,13 +68,32 @@ for version in "${versions[@]}"; do
 		exit 1
 	fi
 
-	(
-		set -x
-		sed -ri '
-			s/^(ENV PYPY_VERSION) .*/\1 '"$fullVersion"'/;
-			s/^(ENV PYPY_SHA256SUM) .*/\1 '"$sha256sum"'/;
-			s/^(ENV PYTHON_PIP_VERSION) .*/\1 '"$pipVersion"'/;
-		' "$version"{,/slim}/Dockerfile
-		sed -ri 's/^(FROM pypy):.*/\1:'"$version"'/' "$version/onbuild/Dockerfile"
-	)
+	echo "$version: $fullVersion"
+
+	linuxArchCase='dpkgArch="$(dpkg --print-architecture)"; '$'\\\n'
+	linuxArchCase+=$'\t''case "${dpkgArch##*-}" in '$'\\\n'
+	for dpkgArch in $(dpkgArches); do
+		pypyArch="$(dpkgToPyPyArch "$dpkgArch")"
+		sha256="$(scrapeSha256 "$pypy" "$fullVersion" "$pypyArch")" || :
+		if [ -z "$sha256" ]; then
+			echo >&2 "warning: cannot find sha256 for $pypy-$fullVersion on arch $pypyArch ($dpkgArch); skipping it"
+			continue
+		fi
+		bashbrewArch="$(dpkgToBashbrewArch "$dpkgArch")"
+		linuxArchCase+="# $bashbrewArch"$'\n'
+		linuxArchCase+=$'\t\t'"$dpkgArch) pypyArch='$pypyArch'; sha256='$sha256' ;; "$'\\\n'
+	done
+	linuxArchCase+=$'\t\t''*) echo >&2 "error: current architecture ($dpkgArch) does not have a corresponding PyPy $PYPY_VERSION binary release"; exit 1 ;; '$'\\\n'
+	linuxArchCase+=$'\t''esac'
+
+	for variant in '' slim; do
+		sed -r \
+			-e 's!%%PYPY_VERSION%%!'"$fullVersion"'!g' \
+			-e 's!%%TAR%%!'"$pypy"'!g' \
+			-e 's!%%CMD%%!'"$cmd"'!g' \
+			-e 's!%%ARCH-CASE%%!'"$(sed_escape_rhs "$linuxArchCase")"'!g' \
+			"Dockerfile${variant:+-$variant}.template" > "$version/$variant/Dockerfile"
+	done
+
+	sed -ri 's/^(FROM pypy):.*/\1:'"$version"'/' "$version/onbuild/Dockerfile"
 done