diff --git a/config/exports b/config/exports
index 902edab..ecbd796 100755
--- a/config/exports
+++ b/config/exports
@@ -347,7 +347,8 @@ export AWS_CONFIGURE_SESSION_MFA=true
 msg "Setting up Mason configuration"
 export MASON_HOME="$XDG_DATA_HOME/nvim/mason"
 
-# Neovim environment variables
+# Neovim environment variables — optional overrides for external tools.
+# Neovim itself uses vim.fn.stdpath() and does not read these.
 msg "Setting up Neovim configuration"
 [ -z "${NVIM_STATE:-}" ] && export NVIM_STATE="$XDG_STATE_HOME/nvim"
 [ -z "${NVIM_CONFIG_HOME:-}" ] && export NVIM_CONFIG_HOME="$XDG_CONFIG_HOME/nvim"
@@ -503,7 +504,7 @@ export SQLITE_HISTORY="${XDG_CACHE_HOME}/sqlite_history"
 # mise — unified tool version manager
 # https://mise.jdx.dev
 if command -v mise &> /dev/null; then
-  if [ -n "${ZSH_NAME:-}" ]; then
+  if [ -n "${ZSH_VERSION:-}" ]; then
     eval "$(mise activate zsh)"
   else
     eval "$(mise activate bash)"
diff --git a/local/bin/dfm b/local/bin/dfm
index b6f177a..ad2d0d9 100755
--- a/local/bin/dfm
+++ b/local/bin/dfm
@@ -168,7 +168,7 @@ section_install()
       msgr run "Installing tools via mise..."
       if ! command -v mise &> /dev/null; then
         msgr nested "Installing mise..."
-        if ! curl https://mise.run | sh; then
+        if ! curl -fsSL https://mise.run | sh; then
           msgr err "Failed to install mise"
           exit 1
         fi
diff --git a/scripts/cleanup-old-version-managers.sh b/scripts/cleanup-old-version-managers.sh
index feca1f7..1778cda 100755
--- a/scripts/cleanup-old-version-managers.sh
+++ b/scripts/cleanup-old-version-managers.sh
@@ -37,6 +37,7 @@ remove_dir()
   else
     msgr ok "$label not found (already clean): $dir"
   fi
+  return 0
 }
 
 remove_file()
@@ -51,6 +52,7 @@ remove_file()
       msgr run_done "Removed $label: $file"
     fi
   fi
+  return 0
 }
 
 msgr msg "Cleaning up old version manager installations..."
diff --git a/scripts/install-fonts.sh b/scripts/install-fonts.sh
index efe2fcb..ddc1cca 100755
--- a/scripts/install-fonts.sh
+++ b/scripts/install-fonts.sh
@@ -51,7 +51,6 @@ install_fonts()
 {
   msgr run "Starting to install NerdFonts..."
   # shellcheck disable=SC2048,SC2086
-  # shellcheck disable=SC2086
   ./install.sh -q -s ${fonts[*]} \
     && msgr run_done "Done"
   return 0
diff --git a/scripts/install-python-packages.sh b/scripts/install-python-packages.sh
index ef27249..548d8ec 100755
--- a/scripts/install-python-packages.sh
+++ b/scripts/install-python-packages.sh
@@ -9,7 +9,7 @@ msgr run "Starting to install Python libraries"
 
 # Ensure uv is available
 if ! command -v uv &> /dev/null; then
-  msgr err "uv not found — install it via mise first"
+  msgr err "uv not found — install it via mise first (run: dfm install mise)"
   exit 1
 fi