diff --git a/support/Dockerfile.rundk b/support/Dockerfile.rundk
index a3502af..77d2c88 100644
--- a/support/Dockerfile.rundk
+++ b/support/Dockerfile.rundk
@@ -1,10 +1,12 @@
 # -*- coding: utf-8 mode: dockerfile -*- vim:sw=4:sts=4:et:ai:si:sta:fenc=utf-8
+ARG NDIST=12
 ARG REGISTRY=pubdocker.univ-reunion.fr
+
 FROM $REGISTRY/src/base as base
 FROM $REGISTRY/src/php as php
 
 ################################################################################
-FROM debian:11-slim as builder
+FROM debian:${NDIST}-slim as builder
 COPY --from=base /g/ /g/
 COPY --from=base /src/ /src/
 
@@ -12,7 +14,7 @@ RUN /g/build core lite _builder
 RUN make -C /src/su-exec
 
 ################################################################################
-FROM debian:11-slim
+FROM debian:${NDIST}-slim
 
 COPY --from=builder /src/su-exec/su-exec /g/
 COPY --from=base /g/ /g/
diff --git a/support/dot-build.env.dist b/support/dot-build.env.dist
index b08a53b..8646bee 100644
--- a/support/dot-build.env.dist
+++ b/support/dot-build.env.dist
@@ -16,3 +16,4 @@ PRIVAREG=
 # Ne pas toucher à partir d'ici
 
 REGISTRY=pubdocker.univ-reunion.fr
+DIST=d12
diff --git a/support/rundk b/support/rundk
index 4c02c16..70b2d9b 100755
--- a/support/rundk
+++ b/support/rundk
@@ -29,8 +29,13 @@ COMPOSERPHAR=
 VENDORDIR=
 
 # fichier de configuration pour le build
+BUILDENV0=
 BUILDENV=
 
+# version de debian à utiliser pour l'image
+# d12=php8.2, d11=php7.4, d10=php7.3
+DIST=
+
 ################################################################################
 # Ne pas modifier à partir d'ici
 
@@ -38,9 +43,12 @@ BUILDENV=
 [ -n "$COMPOSERDIR" ] || COMPOSERDIR=.
 [ -n "$COMPOSERPHAR" ] || COMPOSERPHAR=sbin/composer.phar
 [ -n "$VENDORDIR" ] || VENDORDIR=vendor
+[ -n "$BUILDENV0" ] || BUILDENV0=.build.env.dist
 [ -n "$BUILDENV" ] || BUILDENV=build.env
+[ -n "$DIST" ] || DIST=d12
 
 [ "$COMPOSERPHAR" == none ] && COMPOSERPHAR=
+[ "$BUILDENV0" == none ] && BUILDENV0=
 [ "$BUILDENV" == none ] && BUILDENV=
 
 function eecho() { echo "$*" 1>&2; }
@@ -68,14 +76,20 @@ function composer() {
 bootstrap=
 BootstrapOnly=1
 ForcedBootstrap=
+parse_opts=1
 args=()
 for arg in "$@"; do
-    if [ "$arg" == --bootstrap ]; then
+    if [ -z "$parse_opts" ]; then
+        args+=("$arg")
+    elif [ "$arg" == --bootstrap ]; then
         bootstrap=1
     elif [ "$arg" == --exec ]; then
         BootstrapOnly=
+    elif [[ "$arg" == -* ]]; then
+        args+=("$arg")
     else
         args+=("$arg")
+        parse_opts=
     fi
 done
 set -- "${args[@]}"
@@ -170,14 +184,16 @@ if [ -z "$_RUNDK_IN_DOCKER" ]; then
     else
         UseRslave=1
     fi
-    IMAGENAME=nulib/rundk
+    IMAGENAME="nulib/rundk"
 
     if [ -z "$bootstrap" ]; then
-        if [ -f "$PROJDIR/$BUILDENV" ]; then
+        if [ -n "$BUILDENV" -a -f "$PROJDIR/$BUILDENV" ]; then
             source "$PROJDIR/$BUILDENV" || exit 1
+        elif [ -n "$BUILDENV0" -a -f "$PROJDIR/$BUILDENV0" ]; then
+            source "$PROJDIR/$BUILDENV0" || exit 1
         fi
         if [ -z "$IMAGE" ]; then
-            [ -n "$PRIVAREG" ] && IMAGE="$PRIVAREG/$IMAGENAME" || IMAGE="$REGISTRY/$IMAGENAME"
+            [ -n "$PRIVAREG" ] && IMAGE="$PRIVAREG/$IMAGENAME:$DIST" || IMAGE="$REGISTRY/$IMAGENAME:$DIST"
         fi
         if [ -z "$(docker image ls --no-trunc --format '{{.Repository}}:{{.Tag}}' "$IMAGE" 2>/dev/null)" ]; then
             bootstrap=1
@@ -193,12 +209,18 @@ if [ -z "$_RUNDK_IN_DOCKER" ]; then
             TIMEZONE
         )
 
-        SOPTS=+c:UjDx:z:r:pw:v
-        LOPTS=help,config:,unless-exists,pull,no-cache,plain-output,apt-proxy:,timezone:,privareg:,push,chdir:,verbose,no-use-rslave
+        SOPTS=+d:9876543210:c:UjDx:z:r:pw:v
+        LOPTS=help,dist:,d19,d18,d17,d16,d15,d14,d13,d12,d11,d10,config:,unless-exists,pull,no-cache,plain-output,apt-proxy:,timezone:,privareg:,push,chdir:,verbose,no-use-rslave
         args="$(getopt -n "$MYNAME" -o "$SOPTS" -l "$LOPTS" -- "$@")" || exit 1; eval "set -- $args"
 
-        [ -f "$PROJDIR/$BUILDENV" ] && Config="$PROJDIR/$BUILDENV" || Config=
-        Build=
+        Dist=
+        if [ -n "$BUILDENV" -a -f "$PROJDIR/$BUILDENV" ]; then
+            Config="$PROJDIR/$BUILDENV"
+        elif [ -n "$BUILDENV0" -a -f "$PROJDIR/$BUILDENV0" ]; then
+            Config="$PROJDIR/$BUILDENV0"
+        else
+            Config=
+        fi
         UnlessExists=
         Pull=
         NoCache=
@@ -232,8 +254,10 @@ OPTIONS
         afficher plus d'informations"
                 exit 0
                 ;;
+            -d|--dist) shift; Dist="$1";;
+            -[0-9]) Dist="d1${1#-}";;
+            --d*) Dist="${1#--}";;
             -c|--config) shift; Config="$1";;
-            -0|--build) Build=1;;
             --unless-exists) UnlessExists=1;;
             -U|--pull) Pull=1;;
             -j|--no-cache) NoCache=1;;
@@ -254,8 +278,9 @@ OPTIONS
         if [ -n "$Config" ]; then
             source "$Config" || exit 1
         fi
+        [ -n "$Dist" ] && DIST="$Dist"
         if [ -z "$IMAGE" ]; then
-            [ -n "$PRIVAREG" ] && IMAGE="$PRIVAREG/$IMAGENAME" || IMAGE="$REGISTRY/$IMAGENAME"
+            [ -n "$PRIVAREG" ] && IMAGE="$PRIVAREG/$IMAGENAME:$DIST" || IMAGE="$REGISTRY/$IMAGENAME:$DIST"
         fi
         if [ -z "$UnlessExists" -o -z "$(docker image ls --no-trunc --format '{{.Repository}}:{{.Tag}}' "$IMAGE" 2>/dev/null)" ]; then
             eecho "== Building $IMAGE"
@@ -265,6 +290,7 @@ OPTIONS
                 ${NoCache:+--no-cache}
                 ${BuildPlain:+--progress plain}
                 -t "$IMAGE"
+                --build-arg "NDIST=${DIST#d}"
             )
             for arg in "${BUILD_ARGS[@]}"; do
                 args+=(--build-arg "$arg=${!arg}")