RegEx with ASAN crashes the application

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Summary The issue at hand involves a regular expression pattern that causes a crash when used with AddressSanitizer (ASAN) in a C++ application. The pattern L”primary key\(*” is used to match the string “primary key” followed by zero or more occurrences of any character, but it results in a crash due to invalid memory access. … Read more

Python file doesn’t run properly in PowerShell (Problem solved itself?)

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Summary A Python script using colorama and termcolor to print colored text to the console appeared to “do nothing” when executed in PowerShell, while the same code executed successfully in the Python REPL. The core issue was the immediate termination of the console window (a common behavior in double-clicked .py files or certain launch contexts) … Read more

In Godot, how can I use different culling distances for 2 different layers with a single camera?

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Summary In Godot 4, using different culling distances for multiple layers with a single camera is not a straightforward process. The engine does not provide a built-in feature to adjust culling distances for individual layers on a single camera. However, there are workarounds to achieve this functionality, which will be discussed in this article. Root … Read more

Don’t get publish() to work in paho.mqtt.client.on_connect thread

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Summary A developer reported that paho.mqtt.client.publish() calls inside the on_connect callback (and a subsequent infinite loop within that callback) were not reaching the broker, while a publish call in the main thread succeeded. The root cause was blocking the Paho client’s network loop. The on_connect callback executes within the thread handling network I/O (started by … Read more

Tkinter frame changes with buttons

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Summary The code attempted to implement a Tkinter frame change but failed due to incorrect function nesting and global state management. The frame_change function was never called because the ready_to_change flag logic was encapsulated in a nested function definition rather than being executed. Additionally, the window was misconfigured with a 1×1 pixel geometry, which made … Read more

Sanity IO error when trying to visit /studio on localhost

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Summary A Sanity Studio initialization failure occurs on localhost:3000/studio when the Next.js application cannot properly load the Studio components or resolve environment variables required for the Sanity client configuration. This typically happens due to incorrect environment variable naming, missing Sanity configuration in next.config.js, or improper Studio mounting setup. Root Cause Missing or incorrect environment variables: … Read more

STM32 basic I2C bare metal setup and transmit issue

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Summary The bare-metal I2C3 initialization and transmit sequence fails because the timing register is invalid (0x00000000), the slave address handling is incorrect for a 7-bit write operation, and peripheral clock configuration is incomplete. The HAL driver handles peripheral reset, clock setup, and timing calculation correctly, while the bare-metal code attempts to start transactions without a … Read more

deployment error Vercel Error occurred prerendering page Error: @supabase/ssr: Your project’s URL and API key are required to create a Supabase clien

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Summary The deployment failed during the Static Site Generation (SSG) prerender phase in Next.js, specifically when attempting to render the /admin/Expertise page. The build process crashed because the Supabase client library (@supabase/ssr) attempted to initialize a client instance without the required environment variables (NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_ANON_KEY). Because these values were missing or undefined at build … Read more