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VSCodium uses the Open VSX Registry instead of Microsoft's marketplace, which causes missing extensions, silent search failures, and version lag. A diagnostic guide to identifying the cause and choosing the right fix.
VSCodium replaces the default extension marketplace with the Open VSX Registry to strip Microsoft telemetry. Learn how this affects extension installs, what to watch for, and when you might need to add the original gallery.
Learn how VSCodium’s built‑in Open VSX Registry support lets you install and publish VS Code extensions without Microsoft accounts or telemetry, with a concrete install/publish example and verification steps.
VSCodium removes telemetry at build time, so the setting mainly signals extensions. Here is what it covers, where it stops, and how to verify it.
VSCodium isn't just VS Code with telemetry off — it's a different extension supply chain. Here's how the Open VSX marketplace difference plays out and how to onboard a team safely.
VSCodium is built from the MIT-licensed VS Code source but strips proprietary branding and telemetry. This process modifies the internal product identifier used by the application to identify itself to extensions. Certain extensions are hard-coded to target the vscode product ID. When these extensions are installed via the Open VSX Registry, they may fail to
Goal Determine how JupyterLab 3.0 handles simultaneous extension installs and why latency spikes appear only under concurrent requests. Constraints Extensions must be npm modules pre‑built for the target JupyterLab version. The server uses a lockfile to guard the extension directory. Concurrent installs can trigger race conditions that are not documented. Un
Extension Identity Management VSCodium replaces the proprietary Microsoft Marketplace with the Open VSX Registry to maintain a telemetry-free environment. While standard extension installation is seamless, authentication for private registries or restricted extension scopes relies on the underlying operating system's keychain and specific OAuth flows. Creden
Goal: Ensure predictable execution order of multiple JUnit 5 extensions When a test class is annotated with several @ExtendWith entries, each registering extensions that implement lifecycle callbacks such as BeforeEachCallback or AfterEachCallback, the JUnit Platform does not guarantee a deterministic invocation order unless the extensions also implement Ord
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