diff --git a/Dockerfile b/Dockerfile
index efefa89..bddfd07 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,27 +21,14 @@ RUN apk add --no-cache libc6-compat curl wget bash
 
 SHELL ["/bin/bash", "-c"]
 
+# Install location for Bun (allow override at build time)
+ARG BUN_INSTALL=$HOME/.bun
+# Make Bun available on PATH for subsequent build steps
+ARG PATH=$BUN_INSTALL/bin:$PATH
+
 # 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