diff --git a/construct.yaml b/construct.yaml
index d898be1..ddf37f0 100644
--- a/construct.yaml
+++ b/construct.yaml
@@ -119,6 +119,7 @@ specs:
   - pytest
   - recommonmark
   - authlib >=1.0.0
+  - joserfc
   - pyjwt
   - dominate
   - httpx
diff --git a/create_diracosrc.sh b/create_diracosrc.sh
index 73ee1b5..2b93e74 100644
--- a/create_diracosrc.sh
+++ b/create_diracosrc.sh
@@ -18,9 +18,6 @@
     echo 'micromamba activate "$DIRACOS"'
     echo '[ "$__diracos_xtrace" = 1 ] && set -x; unset __diracos_xtrace'
     echo ''
-    echo '# Silence python warnings'
-    echo 'export PYTHONWARNINGS=ignore'
-    echo ''
     echo '# Davix options (will be default in the future)'
     echo 'export DAVIX_USE_LIBCURL=1'
     echo '# Disable caching redirection to avoid asking storage nodes instead of head nodes'
@@ -42,14 +39,16 @@
     echo '  if [ -z "${resolvedDir}" ]; then'
     echo '    return 1'
     echo '  fi'
-    echo '  # Silence xtrace so a traced "ls -A" on e.g. a CA cert dir does not dump thousands of lines'
+    echo '  # Silence xtrace so the directory listing (e.g. a CA cert dir with'
+    echo '  # thousands of files) is not expanded into the trace. xtrace stays off'
+    echo '  # through the emptiness test, which would otherwise dump every entry.'
     echo '  local _xt=0; case $- in *x*) _xt=1; set +x;; esac'
-    echo '  local _contents; _contents=$(ls -A "${resolvedDir}" 2>/dev/null)'
-    echo '  [ "$_xt" = 1 ] && set -x'
-    echo '  if [ -n "${_contents}" ]; then'
-    echo '    return 0'
+    echo '  local _ret=1'
+    echo '  if [ -n "$(ls -A "${resolvedDir}" 2>/dev/null)" ]; then'
+    echo '    _ret=0'
     echo '  fi'
-    echo '  return 1'
+    echo '  [ "$_xt" = 1 ] && set -x'
+    echo '  return "${_ret}"'
     echo '}'
     echo ''
     echo '# Add sanity check for X509_CERT_DIR variable'
diff --git a/pixi.toml b/pixi.toml
index a80b6c9..ac452e3 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -14,7 +14,7 @@ conda-standalone = "*"
 jinja2 = "*"
 jsonschema = ">=4"
 pillow = ">=3.1"
-"ruamel.yaml" = ">=0.11.14,<0.19"
+"ruamel.yaml" = "*"
 
 [pypi-dependencies]
 constructor = { git = "https://github.com/chrisburr/constructor.git", branch = "fix/mkdir-conda-guard" }