diff --git a/Dockerfile b/Dockerfile
index 7196906..efefa89 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,6 +24,24 @@ SHELL ["/bin/bash", "-c"]
 # Bun (baseline) for CPU without support for AVX/AVX2
 RUN curl -fsSL https://bun.sh/install | bash
 
+# Make Bun available to interactive shells inside the container.
+#  - /etc/profile.d/bun.sh: picked up by login shells and many interactive shells
+#  - /root/.bashrc and /home/node/.bashrc: explicit per-user fallback for `bash` interactive
+RUN tee /etc/profile.d/bun.sh > /dev/null <<'EOF'
+export BUN_INSTALL="${BUN_INSTALL:-$HOME/.bun}"
+export PATH="$BUN_INSTALL/bin:$PATH"
+EOF
+RUN chmod +x /etc/profile.d/bun.sh \
+  && grep -Fqx 'export BUN_INSTALL="${BUN_INSTALL:-$HOME/.bun}"' /root/.bashrc 2>/dev/null || \
+     echo 'export BUN_INSTALL="${BUN_INSTALL:-$HOME/.bun}"' >> /root/.bashrc \
+  && grep -Fqx 'export PATH="$BUN_INSTALL/bin:$PATH"' /root/.bashrc 2>/dev/null || \
+     echo 'export PATH="$BUN_INSTALL/bin:$PATH"' >> /root/.bashrc \
+  && mkdir -p /home/node && grep -Fqx 'export BUN_INSTALL="${BUN_INSTALL:-$HOME/.bun}"' /home/node/.bashrc 2>/dev/null || \
+     echo 'export BUN_INSTALL="${BUN_INSTALL:-$HOME/.bun}"' >> /home/node/.bashrc \
+  && grep -Fqx 'export PATH="$BUN_INSTALL/bin:$PATH"' /home/node/.bashrc 2>/dev/null || \
+     echo 'export PATH="$BUN_INSTALL/bin:$PATH"' >> /home/node/.bashrc \
+  && chown node:node /home/node/.bashrc || true
+
 # ────────────────────────── prod-deps ────────────────────────────
 # Production-only install. Used at runtime alongside the standalone
 # server so the Payload CLI / migrations / bin scripts have every