fix: add DOCKER_DEFAULT_PLATFORM env var and verify required tools

start-game.sh

@@ -26,6 +26,7 @@ DOCKERFILE_GAME="${REPO_DIR}/Dockerfile"
 DOCKER_COMPOSE_FILE="game-${GAME_TIMESTAMP}.yaml"
 LOG_FILE="${LOG_DIR}/game-${GAME_TIMESTAMP}.log"
 COMMAND_UP="docker compose -f ${DOCKER_COMPOSE_FILE} up --timestamps --abort-on-container-exit"
+export DOCKER_DEFAULT_PLATFORM=linux/amd64
 
 # yay colors
 BLUE="\033[1;94m"
@@ -86,6 +87,11 @@ function _error() {
 	exit 1
 }
 
+# check required tools
+(docker compose version &>/dev/null) || _error "Install docker compose first.${CLEAR}\n\thttps://docs.docker.com/compose/install/"
+(type shuf &>/dev/null) || _error "Install 'coreutils' package first (required: shuf)."
+(type awk &>/dev/null) || _error "Install 'awk' package first."
+
 function divider() {
 	[[ "${COLUMNS}" ]] || COLUMNS=80
 	eval printf '=%.0s' {1..$COLUMNS}
@@ -349,6 +355,7 @@ _info "🚀 ${GREEN}Starting game!"
 create_game_log
 print_header
 (
+	export DOCKER_DEFAULT_PLATFORM=linux/amd64
 	eval "${COMMAND_UP}"
 ) | tee -a "${LOG_FILE}"