diff --git a/docker/build.sh b/docker/build.sh
new file mode 100755
index 00000000..e64832bc
--- /dev/null
+++ b/docker/build.sh
@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+
+set -euxo pipefail
+
+# two `cd`'s so Git can find the root dir even if this script is called from
+# outside the repo
+cd $(dirname "${BASH_SOURCE[0]}")
+cd $(git rev-parse --show-toplevel)
+
+# nix-store is way quicker at copying these files and only needs to do it once
+# if the source doesn't change
+if whereis nix-store >/dev/null; then
+    SRCDIR="$(nix-store --add $PWD)"
+else
+    SRCDIR="$(mktemp -d /tmp/isle-src.XXXXXX)"
+    git ls-files -z | xargs -0I{} install -D {} "$SRCDIR/{}"
+fi
+
+cleanup () {
+    rm -rf "$SRCDIR" 2>/dev/null
+}
+
+trap cleanup EXIT
+
+declare oci_cmd
+
+if whereis podman >/dev/null; then
+    oci_cmd=podman
+elif whereis docker >/dev/null; then
+    oci_cmd=docker
+else
+    echo "No container engine (docker/podman) found!"
+    exit 2
+fi
+
+"$oci_cmd" build -t isle "$SRCDIR/docker"
+
+mkdir -p result
+rm -rf result/*
+
+if [[ "x${JOBS:-}" == "x" ]]; then
+    JOBS=$(nproc)
+fi
+
+"$oci_cmd" run -it \
+    -e CMAKE_FLAGS="-DCMAKE_BUILD_TYPE=RelWithDebInfo" \
+    -v "$SRCDIR":/isle:rw \
+    -e JOBS="$JOBS" \
+    --tmpfs /build \
+    -v ./result:/install \
+    isle
+