diff --git a/list_test_runner_machines b/list_test_runner_machines
new file mode 100755
index 0000000..7c76dd9
--- /dev/null
+++ b/list_test_runner_machines
@@ -0,0 +1,237 @@
+#!/bin/bash
+
+TEST_MACHINES=$(
+        cat <<'HEREDOC'
+lrineau@bonnard
+lrineau@cgal
+cgaltest@friedrich
+lrineau@rubens
+HEREDOC
+)
+
+machine_title() {
+        printf '\n## %s ##\n' $1
+}
+
+machine_tested_images() {
+        echo
+        echo '```plain'
+        ssh $1 cat /home/$2/.config/CGAL/test_cgal_docker_images
+        echo '```'
+}
+
+docker_is_active_cmd() {
+        systemctl is-active -q docker
+        return $?
+}
+declare -xf docker_is_active_cmd
+
+docker_cmd() {
+        if docker_is_active_cmd; then
+                docker $@
+        else
+                podman --url unix:/var/run/podman/podman.sock $@
+        fi
+}
+declare -xf docker_cmd
+
+list_of_containers_cmd() {
+        docker_cmd ps -a --format '{{.Names}}' --filter name="CGAL-"
+}
+declare -xf list_of_containers_cmd
+
+container_status_cmd() {
+        docker_cmd inspect --format '{{.State.Status}}' $1
+}
+declare -xf container_status_cmd
+
+container_human_readable_status_cmd() {
+        docker_cmd ps --all --filter name=$1 --format '{{.Status}}'
+}
+declare -xf container_human_readable_status_cmd
+
+simplify_date_cmd() {
+        date=$1
+        pattern=' \+[0-9]{4} [A-Z]{3,}$'
+        if [[ $date =~ $pattern ]]; then
+                date=${date% *}
+        fi
+        echo "$date"
+}
+declare -xf simplify_date_cmd
+
+container_start_time_cmd() {
+        simplify_date_cmd "$(docker_cmd inspect --format '{{.State.StartedAt}}' $1)"
+}
+declare -xf container_start_time_cmd
+
+container_end_time_cmd() {
+        simplify_date_cmd "$(docker_cmd inspect --format '{{.State.FinishedAt}}' $1)"
+}
+declare -xf container_end_time_cmd
+
+container_running_time_cmd() {
+        start_time=$(container_start_time_cmd $1)
+        end_time=$(container_end_time_cmd $1)
+        status=$(container_status_cmd $1)
+        if [ "$status" = "running" ]; then
+                end_time=$(date -u '+%Y-%m-%dT%H:%M:%S.%NZ')
+        fi
+        secs=$(($(date -d "$end_time" +%s) - $(date -d "$start_time" +%s)))
+        printf '%02dh:%02dm:%02ds\n' $((secs / 3600)) $((secs % 3600 / 60)) $((secs % 60))
+}
+declare -xf container_running_time_cmd
+
+display_one_container_line_cmd() {
+        printf '%s\t%s\t%s\t%s\t%s\n' "$1" "$2" "$3" "$4" "$5"
+}
+declare -xf display_one_container_line_cmd
+
+list_cgal_test_container_cmd() {
+        # docker_cmd ps -a --filter name=CGAL-
+        display_one_container_line_cmd "CONTAINER" "START TIME" "END TIME" "RUNNING TIME" "STATUS"
+        for container in $(list_of_containers_cmd); do
+                start_time="$(container_start_time_cmd $container)"
+                end_time="$(container_end_time_cmd $container)"
+                dur=$(container_running_time_cmd $container)
+                status="$(container_status_cmd $container) - $(container_human_readable_status_cmd $container)"
+                display_one_container_line_cmd "$container" "$start_time" "$end_time" "$dur" "$status"
+        done
+}
+declare -xf list_cgal_test_container_cmd
+
+display_all_exported_cmd_functions() {
+        funcs=$(declare -F | awk '/ -fx .*_cmd$/ {print $3}')
+        for func in $funcs; do
+                declare -f $func
+        done
+}
+
+machine_list_cgal_test_container() {
+        printf '\n```tsv\n'
+        remote_script=$(
+                display_all_exported_cmd_functions
+                echo list_cgal_test_container_cmd
+        )
+        ssh $1 bash -s <<<"$remote_script"
+        printf '```\n'
+}
+
+help() {
+        cat <<HEREDOC
+Usage: $0 [OPTION]
+
+List the test runner machines and the containers running on them.
+
+Options:
+  --table   output in markdown table format
+  --column  output in column format
+  --bat     output with bat
+  --plain   output in plain text
+
+If no option is given, the script will try to use bat, then column, and finally
+plain text.
+HEREDOC
+}
+
+error_out() {
+        echo "ERROR: $1"
+        echo
+        help
+        exit 1
+}
+
+command -v sed >/dev/null || {
+        error_out 'sed is required'
+}
+
+
+if [[ $1 == --table ]] && ! command -v pandoc >/dev/null; then
+        error_out 'pandoc is required for the option --table'
+fi
+if [[ $1 == --column ]] && ! command -v column >/dev/null; then
+        error_out 'column is required for the option --column'
+fi
+if [[ $1 == --bat ]] && ! command -v bat >/dev/null; then
+        error_out 'bat is required for the option --bat'
+fi
+
+set_pretty_csv_to_md_table() {
+        pretty_csv() (
+                echo
+                sed '/```/ d; /^$/ d' | pandoc -f tsv -t gfm
+        )
+}
+
+set_pretty_csv_to_column() {
+        pretty_csv() {
+                echo
+                column -t -s $'\t' -o $'\t' | sed 's/^\(```[^ ]*\) *\t.*/\1/'
+        }
+}
+
+set_pretty_csv_to_bat() {
+        pretty_csv() {
+                bat --tabs=50 --paging=never --plain -l csv
+        }
+}
+
+set_pretty_csv_to_cat() {
+        pretty_csv() {
+                cat
+        }
+}
+
+case "$1" in
+--table) set_pretty_csv_to_md_table ;;
+--column) set_pretty_csv_to_column ;;
+--bat) set_pretty_csv_to_bat ;;
+--plain) set_pretty_csv_to_cat ;;
+'')
+        if command -v bat >/dev/null; then
+                set_pretty_csv_to_bat
+        elif command -v column >/dev/null; then
+                set_pretty_csv_to_column
+        elif command -v pandoc >/dev/null; then
+                set_pretty_csv_to_md_table
+        else
+                set_pretty_csv_to_cat
+        fi
+        ;;
+*)
+        error_out "Unknown option $1"
+        ;;
+esac
+
+ERROR_MACHINES=""
+for machine in $TEST_MACHINES; do
+        USER=${machine%@*}
+        HOST=${machine#*@}
+        ssh $HOST test -f /home/$USER/.config/CGAL/test_cgal_docker_images || {
+                ERROR_MACHINES="$ERROR_MACHINES $machine"
+        }
+done
+if [ -n "$ERROR_MACHINES" ]; then
+        for machine in $ERROR_MACHINES; do
+                USER=${machine%@*}
+                HOST=${machine#*@}
+                printf 'ERROR: cannot read file `/home/%s/.config/CGAL/test_cgal_docker_images` on ssh host `%s`\n' $USER $HOST
+        done
+        exit 1
+fi
+cat <<HEREDOC
+# Test runner machines #
+
+The following machines are used to run the tests:
+HEREDOC
+
+for machine in $TEST_MACHINES; do
+        USER=${machine%@*}
+        HOST=${machine#*@}
+        machine_title $machine
+        printf '\nusing `%s`\n' "$(ssh $HOST docker --version)"
+        printf '\nTested images:\n'
+        machine_tested_images $HOST $USER
+        printf '\nCGAL test containers:\n'
+        machine_list_cgal_test_container $HOST $USER | pretty_csv
+done