diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
new file mode 100644
index 0000000..501c248
--- /dev/null
+++ b/.devcontainer/Dockerfile
@@ -0,0 +1,36 @@
+ARG QUARTO_VERSION=1.8.24
+
+
+FROM scratch AS quarto-linux-deb
+ARG QUARTO_VERSION TARGETARCH
+
+# URL from # https://quarto.org/docs/download/
+ADD https://github.com/quarto-dev/quarto-cli/releases/download/v${QUARTO_VERSION:?}/quarto-${QUARTO_VERSION:?}-linux-${TARGETARCH:?}.deb .
+
+
+FROM scratch AS deno-install-sh
+ADD https://deno.land/install.sh .
+
+
+FROM mcr.microsoft.com/devcontainers/python:3.12-bookworm AS devcontainer-base
+ENV DENO_INSTALL=/opt/deno
+
+
+FROM devcontainer-base AS devcontainer-deno
+
+RUN --mount=from=deno-install-sh,source=install.sh,target=/tmp/install.sh \
+  sh /tmp/install.sh --yes --no-modify-path
+
+
+FROM devcontainer-base AS devcontainer
+
+# We use direnv to dynamically set envars for docker compose
+RUN apt-get update && apt-get install direnv \
+  && printf '\n%s\n' 'eval "$(direnv hook bash)"' >> /etc/bash.bashrc
+
+# Install quarto, which we use to build the documentation. Quarto is an
+# open-source scientific and technical publishing system built on Pandoc.
+RUN --mount=from=quarto-linux-deb,target=/debfiles dpkg -i /debfiles/quarto-*.deb
+
+ENV PATH=${PATH:?}:${DENO_INSTALL:?}/bin
+COPY --chown=vscode:vscode --from=devcontainer-deno ${DENO_INSTALL:?} ${DENO_INSTALL:?}
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 0000000..64ec5fe
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,47 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/python
+{
+  "name": "v8serialize",
+  "build": {
+    "target": "devcontainer",
+    "dockerfile": "./Dockerfile"
+  },
+  "features": {
+    "ghcr.io/devcontainers/features/docker-outside-of-docker:1": {}
+  },
+  "containerEnv": {
+    "V8SERIALIZE_NETWORK_EXTERNAL": "true",
+    "V8SERIALIZE_NETWORK": "devcontainer_v8serialize"
+  },
+  "initializeCommand": "V8SERIALIZE_NETWORK=devcontainer_v8serialize; { docker network inspect \"${V8SERIALIZE_NETWORK:?}\" > /dev/null 2>&1 && echo \"Network '${V8SERIALIZE_NETWORK:?}' exists\"; } || docker network create \"${V8SERIALIZE_NETWORK:?}\"",
+  "runArgs": ["--network=devcontainer_v8serialize"],
+  "postCreateCommand": "pipx install poetry",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "charliermarsh.ruff",
+        "denoland.vscode-deno",
+        "esbenp.prettier-vscode",
+        "hashicorp.hcl",
+        "ms-python.mypy-type-checker",
+        "ms-python.python"
+      ],
+      "settings": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode",
+        "[jsonc]": {
+          "editor.defaultFormatter": "esbenp.prettier-vscode"
+        },
+        "[python]": {
+          "editor.defaultFormatter": "charliermarsh.ruff",
+          "editor.formatOnSave": true
+        },
+        "python.testing.pytestArgs": ["."],
+        "python.testing.unittestEnabled": false,
+        "python.testing.pytestEnabled": true,
+        "python.analysis.typeCheckingMode": "off",
+        "deno.enable": true,
+        "deno.enablePaths": ["./testing/v8serialize-echo/"]
+      }
+    }
+  }
+}
diff --git a/.envrc b/.envrc
index 3ff5be3..d44a013 100644
--- a/.envrc
+++ b/.envrc
@@ -30,4 +30,7 @@ if [[ "${V8SERIALIZE_DEVCONTAINER_VOLUME?}" ]]; then
   export V8SERIALIZE_DEVCONTAINER_VOLUME
   export WORKSPACE_MOUNT_PATH=/workspaces
   export "COMPOSE_FILE=$(pwd)/docker-compose.yml:$(pwd)/docker-compose.devcontainer.yml"
+elif [[ ${CODESPACES:-} == true ]]; then
+  export WORKSPACE_MOUNT_PATH=/workspaces
+  export "COMPOSE_FILE=$(pwd)/docker-compose.yml:$(pwd)/docker-compose.devcontainer-codespaces.yml"
 fi
diff --git a/docker-compose.devcontainer-codespaces.yml b/docker-compose.devcontainer-codespaces.yml
new file mode 100644
index 0000000..b837329
--- /dev/null
+++ b/docker-compose.devcontainer-codespaces.yml
@@ -0,0 +1,5 @@
+services:
+  integration_test:
+    volumes:
+      - "/var/lib/docker/codespacemount/workspace:${WORKSPACE_MOUNT_PATH:?}"
+    working_dir: $PWD