Simon Willison’s Weblog

Microsoft Flight Simulator: WebAssembly (via) This is such a smart application of WebAssembly: it can now be used to write extensions for Microsoft Flight Simulator, which means you can run code from untrusted sources safely in a sandbox. I’m really looking forward to more of this kind of usage—I love the idea of finally having a robust sandbox for running things like plugins. # 24th November 2022, 2:08 am

Does Company ‘X’ have an Azure Active Directory Tenant? (via) Neat write-up from Shawn Tabrizi about looking up if a company has Active Directory single-sign-on configured (which is based on OpenID) by checking for an OpenID configuration endpoint. I particularly enjoyed this new-to-me trick: Google’s “I’m Feeling Lucky” search button redirects to the first result, which means it can double as an unofficial API endpoint for returning the URL of the first matching search result. # 1st October 2022, 8:15 pm

Microsoft® Open Source Software (OSS) Secure Supply Chain (SSC) Framework Simplified Requirements. This is really good: don’t get distracted by the acronyms, skip past the intro and head straight to the framework practices section, which talks about things like keeping copies of the packages you depend on, running scanners, tracking package updates and most importantly keeping an inventory of the open source packages you work so you can quickly respond to things like log4j.

I feel like I say this a lot these days, but if you had told teenage-me that Microsoft would be publishing genuinely useful non-FUD guides to open source supply chain security by 2022 I don’t think I would have believed you. # 6th August 2022, 4:49 pm

Visual Studio Code: Development Process (via) A detailed description of the development process used by VS Code: a 6-12 month high level roadmap, then month long iterations that each result in a new version that is shipped to users. Includes details of how the four weeks of each iteration are spent too. # 20th July 2022, 4:34 pm