has issues

video/render.sh

@@ -107,6 +107,17 @@ done
 
 cd "$(dirname "$0")"
 
+# -- scratch space ------------------------------------------------------------
+# Host /tmp is a small tmpfs (often <512MB) and /dev/shm is even smaller, but
+# Playwright spawns a fresh Chromium user-data dir per launch (GPU shader
+# cache, blob storage, …) and ffmpeg/uv also fall back to TMPDIR for their
+# intermediates. Steer everything to a local scratch dir under video/ so the
+# render survives on hosts with a tight /tmp budget. Override SCRATCH_DIR to
+# point elsewhere if disk under video/ is also constrained.
+SCRATCH_DIR="${SCRATCH_DIR:-$PWD/.tmp}"
+mkdir -p "$SCRATCH_DIR"
+export TMPDIR="$SCRATCH_DIR"
+
 # -- helpers ------------------------------------------------------------------
 say()  { printf '\n[render] %s\n' "$*"; }
 fail() { printf '\n[render] FAIL: %s\n' "$*" >&2; exit 1; }
@@ -152,12 +163,27 @@ if [ ! -d node_modules ]; then
   npm install --no-audit --no-fund
 fi
 
-# Chromium binary lives in Playwright's cache; install if missing.
+# Chromium binaries live in Playwright's cache; install if missing.
+# Playwright launches via chrome-headless-shell by default, so we must verify
+# BOTH the chromium and chrome-headless-shell executables exist. Checking the
+# actual binary (not just the parent dir) is intentional: a previously failed
+# install (e.g. ENOSPC mid-download) leaves the chromium-* / chromium_headless_shell-*
+# dir in place but without the binary inside, and a dir-only check would
+# treat that as "installed".
+chromium_bin="$(find "$HOME/.cache/ms-playwright" -path '*/chromium-*/chrome-linux/chrome' -print -quit 2>/dev/null || true)"
+headless_shell_bin="$(find "$HOME/.cache/ms-playwright" -path '*/chromium_headless_shell-*/chrome-headless-shell-linux64/chrome-headless-shell' -print -quit 2>/dev/null || true)"
 if ! npx --no-install playwright --version >/dev/null 2>&1 \
-   || [ ! -d "$HOME/.cache/ms-playwright" ] \
-   || ! find "$HOME/.cache/ms-playwright" -maxdepth 1 -name "chromium-*" -print -quit | grep -q .; then
+   || [ ! -x "${chromium_bin:-/nonexistent}" ] \
+   || [ ! -x "${headless_shell_bin:-/nonexistent}" ]; then
   say "Installing Playwright Chromium"
-  npx playwright install chromium
+  # Playwright stages the ~170MB browser zip in $TMPDIR before extracting into
+  # ~/.cache/ms-playwright. /tmp is often a small tmpfs (we've hit ENOSPC at
+  # 92%), so steer the staging dir into the cache dir itself, which lives on
+  # the same (larger) filesystem we're extracting into anyway.
+  pw_tmpdir="$HOME/.cache/ms-playwright/.tmp"
+  mkdir -p "$pw_tmpdir"
+  TMPDIR="$pw_tmpdir" npx playwright install chromium
+  rm -rf "$pw_tmpdir"
 fi
 
 # System libs Chromium dlopens (libnspr4, libnss3, libasound2…). Detect via