Use Ubuntu base image for devcontainer

[Copilot]

The Codespaces prebuild failed because the legacy TypeScript/Node image does not publish a Node 26 manifest. Use a maintained Ubuntu base and install Node 26.4.0 through the nvm-backed devcontainer feature.

Changelog

New

None.

Changed

• Use the Ubuntu 24.04 devcontainer base image.
• Run the container as the base image’s vscode user.

Removed

• Dependency on mcr.microsoft.com/vscode/devcontainers/typescript-node:26.

Rollout strategy

• Patch release
• Minor release
• Major release; if selected, include a written rollout or migration plan
• None; devcontainer infrastructure only.

Testing & Reviewing

Confirm Codespaces prebuilds resolve the Ubuntu image and provision Node 26.4.0 through nvm.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 07c4d42

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[joshblack]

@copilot add support for setting up nvm/installing the right node version based on nvmrc

[Copilot]

@copilot add support for setting up nvm/installing the right node version based on nvmrc

Implemented in 07c4d42. The Node feature now installs nvm without a hardcoded Node version, and onCreateCommand runs nvm install so .nvmrc controls the installed version before setup.

[Copilot]

Pull request overview

Updates the repository devcontainer to use a maintained Ubuntu base image and provision Node.js via the official devcontainers Node feature, addressing Codespaces prebuild failures caused by the legacy TypeScript/Node image lacking a Node 26 manifest.

Changes:

• Switch devcontainer base image to mcr.microsoft.com/devcontainers/base:ubuntu24.04.
• Run the container as the base image’s vscode user.
• Use the devcontainers Node feature (ghcr.io/devcontainers/features/node:2.1.0) to install Node 26.4.0.

Show a summary per file

File	Description
.devcontainer/devcontainer.json	Moves to Ubuntu 24.04 base image, changes default remote user to vscode, and installs Node 26.4.0 via the devcontainers Node feature.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 0
• Review effort level: Low