diff --git a/api/Dockerfile b/api/Dockerfile
index 511b80d..2eb31a7 100644
--- a/api/Dockerfile
+++ b/api/Dockerfile
@@ -3,11 +3,13 @@ WORKDIR /app
 RUN pip install uv
 
 FROM base AS development
-ENV PYTHONPATH=/app/src
+# python:3.12-slim has no bare 'python' binary; without this uv invalidates the baked venv on every start
+RUN ln -sf /usr/local/bin/python3 /usr/local/bin/python
 COPY pyproject.toml .
+COPY src/ src/
 RUN uv sync
 COPY . .
-CMD ["uv", "run", "uvicorn", "rehearsalhub.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]
+CMD ["uv", "run", "uvicorn", "rehearsalhub.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload", "--reload-dir", "/app/src"]
 
 FROM base AS lint
 COPY pyproject.toml .
diff --git a/web/Dockerfile b/web/Dockerfile
index ad6d332..2be93a1 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -2,7 +2,8 @@ FROM node:20-alpine AS development
 WORKDIR /app
 COPY package*.json ./
 RUN npm install --legacy-peer-deps
-# Source is mounted as a volume at runtime — node_modules stays in the image
+COPY . .
+# ./web/src is mounted as a volume at runtime for HMR; everything else comes from the image
 CMD ["npm", "run", "dev", "--", "--host", "0.0.0.0"]
 
 FROM node:20-alpine AS builder