v3, heavy refactor needed

bin/dnc

@@ -0,0 +1,49 @@
+#!/bin/sh
+set -e
+
+IMAGE="${DNC_IMAGE:-ghcr.io/lstmnemodel/dnc:latest}"
+
+GPU=none
+if command -v nvidia-smi >/dev/null 2>&1; then
+    GPU=nvidia
+fi
+
+DRI=""
+[ -d /dev/dri ] && DRI=1
+
+KFD=""
+[ -e /dev/kfd ] && KFD=1
+
+DOCKER_SOCK="/var/run/docker.sock"
+
+ROOTLESS=$(docker info --format '{{.ClientInfo.Context}}' 2>/dev/null | grep -ci rootless || true)
+if [ "$ROOTLESS" -gt 0 ] 2>/dev/null ; then
+    echo "ERROR: dnc requires rootful Docker. Rootless Docker is not supported." >&2
+    exit 1
+fi
+
+DNC_CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/dnc"
+mkdir -p "$DNC_CACHE"
+
+TTY_FLAG=""
+[ -t 0 ] && TTY_FLAG="-t"
+
+exec docker run --rm -i ${TTY_FLAG} \
+    -v "$DOCKER_SOCK:/var/run/docker.sock:ro" \
+    -v "$PWD:$PWD" -w "$PWD" \
+    -v "$DNC_CACHE:/opt/dnc/host:rw" \
+    -e "DNC_HOST_GPU=$GPU" \
+    -e "DNC_HOST_DRI=$DRI" \
+    -e "DNC_HOST_KFD=$KFD" \
+    -e "DNC_HOST_UID=$(id -u)" \
+    -e "DNC_HOST_GID=$(id -g)" \
+    -e "DNC_HOST_USER=$USER" \
+    -e "DNC_HOST_HOME=$HOME" \
+    -e "DNC_HOST_SHELL=$SHELL" \
+    -e "DNC_HOST_GIDS=$(id -G)" \
+    -e "DNC_CACHE_HOST=$DNC_CACHE" \
+    -e DISPLAY -e WAYLAND_DISPLAY -e XAUTHORITY \
+    -e DBUS_SESSION_BUS_ADDRESS -e XDG_RUNTIME_DIR \
+    -e PULSE_SERVER -e PIPEWIRE_RUNTIME_DIR \
+    -e SSH_AUTH_SOCK -e TERM -e LANG \
+    "$IMAGE" "$@"