fix: build and permissions

deploy/supervisord.conf

@@ -4,7 +4,7 @@ logfile=/var/log/supervisor/supervisord.log
 
 [program:php-fpm]
 command=/usr/local/sbin/php-fpm -F
-user=www-data
+; run as root (master); FPM will drop to www-data for workers
 autorestart=true
 priority=10
 stdout_logfile=/dev/stdout
@@ -14,7 +14,7 @@ stderr_logfile_maxbytes=0
 
 [program:nginx]
 command=/usr/sbin/nginx -g "daemon off;"
-user=nginx
+; run as root (master); nginx will use 'user nginx;' for workers
 autorestart=true
 priority=20
 stdout_logfile=/dev/stdout