Understanding /proc/meminfo: Linux Kernel Memory Metrics
Decode /proc/meminfo metrics in Linux: understand MemAvailable vs MemFree, Active/Inactive anonymous memory, Buffers/Cached, Dirty pages, and Swap.
Lynxbee topic
Software Development
How to Create a Custom Yocto Meta Layer Manually
Step-by-step guide to manually creating custom Yocto Project meta layers: configure layer.conf, BBPATH, BBFILES, bitbake-layers, and recipe structure.
How to Set Up Firebase Crashlytics Logging in Android
Configure Firebase Crashlytics for Android: install Gradle plugins, log custom keys, capture non-fatal exceptions, and upload de-obfuscation mapping files.
How to Download Files in C Using libcurl
Download files over HTTP/HTTPS in C using libcurl: master curl_easy_init, write callbacks, fwrite disk streams, HTTP status codes, and SSL options.
How to Fix "Bad Request (400)" Error in Django
Fix Django HTTP 400 Bad Request errors: troubleshoot ALLOWED_HOSTS settings, CSRF cookie token mismatches, malformed JSON body payloads, and debug logs.
Essential Skills for Open Source & Linux Systems Developers
Master essential skills for Linux systems software development: C/C++, POSIX APIs, Git workflows, Linux kernel internals, build systems, and debugging.
How to Install GStreamer on Linux for Multimedia Development
Install GStreamer development libraries on Ubuntu/Debian & Fedora: configure gst-launch-1.0 CLI, plugin packages, and C/C++ pkg-config dependencies.
How to Fix "Container is not running" Error in Docker
Troubleshoot Docker "Container is not running" daemon errors: inspect exit codes with docker logs, fix entrypoint script crashes, and restart containers.
How to Customize the API Root View in Django REST Framework
Customize default API root index view in Django REST Framework: override DefaultRouter, define custom APIRoot view class, and add metadata endpoints.
How to Write and Upload Your First Arduino Sketch
Learn Arduino C/C++ sketch basics: understand setup() and loop() functions, GPIO pin control, Serial.begin baud rate logging, and flashing firmware.
How to Install Arduino IDE on Ubuntu Linux
Install Arduino IDE on Ubuntu Linux: download AppImage / Flatpak binaries, add dialout group permissions for ttyUSB/ttyACM, and configure board managers.
ChatGPT vs DeepSeek: Architecture & Developer Comparison
Compare ChatGPT (OpenAI) vs DeepSeek AI for software development: evaluate code generation accuracy, Mixture-of-Experts (MoE) latency, and API costs.
What is an Electronic Control Unit (ECU) in Automotive Systems?
Explore Automotive ECU (Electronic Control Unit) architecture: learn CAN bus communication, AUTOSAR software layers, microcontrollers, and real-time OS (RTOS).
How to Fix "Git inflate: data stream error (invalid distance code)"
Fix Git "inflate: data stream error (invalid distance code)" packfile corruption: clear stale git objects, repair with git fsck, and fetch fresh packfiles.
C Preprocessor Directives: #ifdef, #else, and #endif
Master C preprocessor conditional compilation: use #ifdef, #ifndef, #else, #elif, and #endif for cross-platform targets and feature flag builds.
How to Implement MaterialDatePicker in Android (Kotlin)
Implement MaterialDatePicker in Android using Kotlin: build birthdate pickers, set DateValidator constraints, handle UTC timestamps, and style themes.
How to Add Compound Drawables to TextView in Android
Add vector icons to Android TextView using compound drawables: master drawableStart, drawablePadding, tint colors, and programmatic Kotlin APIs.
How to Create Equal-Sized Buttons in Android LinearLayout
Create equal width or height buttons in Android LinearLayout: master layout_weight=1, set layout_width=0dp, and build responsive UI layouts in XML.
Understanding java -XshowSettings:vm and _JAVA_OPTIONS
Inspect JVM configuration with java -XshowSettings:vm and _JAVA_OPTIONS: debug max heap sizes, garbage collector defaults, and environment overrides.
How to Run an Interactive Ubuntu Container in Docker
Run an interactive Ubuntu shell inside Docker: master docker run -it ubuntu bash, mount volume directories, install packages, and manage lifecycle.
How to Use ManyToManyField in Django ORM
Master ManyToManyField in Django ORM: define relationship models, add intermediate 'through' tables, query related sets, and optimize prefetch_related.
How to Fix INSTALL_FAILED_TEST_ONLY Error in Android ADB
Fix ADB INSTALL_FAILED_TEST_ONLY installation errors in Android: use adb install -t flag, disable android:testOnly in AndroidManifest.xml, or update Gradle.
How to Debug Android Fragment Lifecycle Crashes
Debug Android Fragment lifecycle crashes, IllegalStateException, and state loss: master FragmentManager.enableDebugLogging(), FragmentStrictMode, and callbacks.
How to Enable ALOGV Verbose Native Logs in Android Logcat
Enable ALOGV verbose native logs in Android C/C++ HAL layers: set LOG_NDEBUG 0, configure setprop log.tag.<TAG> VERBOSE, and inspect Android Logcat.