# Practitioner Published articles for Practitioner. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## AI x QA Leadership Summit 2026: Building the AI-Native QA Engine DevFeed: [AI x QA Leadership Summit 2026: Building the AI-Native QA Engine]() Original publisher: [Read original article]() Author: Shweta Chhillar Published: 2026-09-11T06:34:59Z Content type: article Language: en Sources: [BrowserStack Blog]() Topics: [Testing](), [AI Strategy](), [Artificial Intelligence]() Tags: [2026](), [ai](), [events](), [free](), [governance](), [leadership](), [practitioner](), [qa](), [quality-engineering](), [september-2026](), [summit](), [virtual-event](), [workflow](), [workshops]() ### AI overview BrowserStack's 11th QA Leadership Summit is a free virtual event on 23 September 2026. It offers separate tracks on AI strategy and governance for QA leaders and applied AI testing skills for practitioners, with the theme "Building the AI-Native QA Engine." ### Source excerpt BrowserStack's 11th QA Leadership Summit runs 23 September 2026, free and virtual. Two tracks: AI strategy and governance for QA leaders, applied AI testing for practitioners. Speakers from AWS, Amazon, Atlassian, KPMG and S&P Global. ## Connect an ESP device and iPhone directly using Wi-Fi Aware DevFeed: [Connect an ESP device and iPhone directly using Wi-Fi Aware]() Original publisher: [Read original article]() Author: John Lee Published: 2026-08-25T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [Wi-Fi](), [iOS](), [iphone](), [cross-platform](), [P2P](), [Internet of things](), [networking]() Tags: [android](), [app](), [blog](), [cross-platform](), [esp-idf](), [esp-idf-component](), [how-to](), [ios](), [iot](), [iphone](), [ipv6](), [p2p](), [pairing](), [practitioner](), [security](), [wi-fi](), [wi-fi-aware]() ### AI overview This tutorial explains how to connect an ESP device directly to an iPhone using Wi-Fi Aware. It describes service discovery, mandatory six-digit PIN pairing, and an encrypted IPv6 data link without an access point, DHCP server, or internet connection. On supported devices running iOS 26 or iPadOS 26, the connection can operate concurrently with normal Wi-Fi connectivity. ### Source excerpt iOS 26 brings Wi-Fi Aware™ support on iPhone 12 and later, enabling compatible devices to securely discover, pair, and communicate directly. This requires no Access Point and does not affect iPhone's network connectivity over Wi-Fi. This article walks through the steps to set up an ESP device and an iPhone so they can pair and connect using Wi-Fi Aware. ## The platform engineering certification path: From Practitioner to Architect DevFeed: [The platform engineering certification path: From Practitioner to Architect]() Original publisher: [Read original article]() Author: Karolina Semiuk Published: 2026-07-23T05:40:01Z Content type: article Language: en Sources: [Platform Engineering Blog]() Topics: [Platform Engineering](), [internal developer platform](), [DevOps]() Tags: [and-best-practices](), [concepts](), [engineering](), [platform-engineering](), [practitioner](), [validation]() ### AI overview The article presents a vendor-neutral platform engineering certification path progressing from foundational concepts toward architect-level expertise. It explains that senior engineers and platform teams seek validation, shared language, and best practices, and distinguishes platform engineering competencies from tool-specific DevOps training. ### Source excerpt Explore the platform engineering certification path, from foundational concepts to architect-level expertise, designed for senior engineers and entire teams. ## Introducing the Hyperscaler GTM Playbook DevFeed: [Introducing the Hyperscaler GTM Playbook]() Original publisher: [Read original article]() Author: flashdba Published: 2026-07-13T21:11:00Z Content type: article Language: en Sources: [flashdba]() Topics: [Cloud](), [cloud-infrastructure](), [Amazon Web Services](), [Azure](), [Google]() Tags: [articles](), [aws](), [azure](), [cloud](), [cloud-alliances](), [cloud-co-sell](), [cloud-marketplace](), [google-cloud](), [guide](), [hyperscaler](), [isv](), [partner](), [practitioner]() ### AI overview A vendor-neutral 16-article Hyperscaler GTM Playbook explains cloud alliances, co-sell, and marketplace operations for ISVs selling alongside AWS, Azure, and Google Cloud. It emphasizes the practical differences among the hyperscalers and the importance of whether software runs in the provider's or the customer's cloud account. ### Source excerpt A vendor-neutral practitioner guide on cloud alliances, co-sell and marketplace - 16 articles covering everything from partner programs to private offers, for ISVs selling with AWS, Azure and Google Cloud. ## Payment Form Design for Conversion: A SaaS Practitioner's Guide DevFeed: [Payment Form Design for Conversion: A SaaS Practitioner's Guide]() Original publisher: [Read original article]() Author: Ayush Agarwal Published: 2026-05-21T00:00:00Z Content type: tutorial Language: en Sources: [Dodo Payments Blog]() Topics: [Software as a service](), [Responsive Design](), [Forms](), [Web]() Tags: [checkout](), [conversion](), [design](), [forms](), [guide](), [mobile](), [payment](), [practitioner](), [responsive-design](), [saas](), [ux]() ### AI overview A practical guide to improving payment-form conversion for SaaS and digital products. It emphasizes mobile layouts, expected payment methods, clear totals and currencies, recoverable error messages, and removing fields that feel unnecessary. ### Source excerpt What actually moves checkout conversion. Field count, mobile layout, error messaging, payment methods, and the patterns that win on real traffic. ## Introducing ESP-IDF button component DevFeed: [Introducing ESP-IDF button component]() Original publisher: [Read original article]() Author: John Lee Published: 2026-02-18T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [Embedded Systems](), [ESP32](), [Embedded Software Dev](), [Code]() Tags: [adc](), [blog](), [callback](), [community-software](), [embedded](), [embedded-systems](), [esp-idf](), [esp-idf-component](), [esp32](), [examples](), [gpio](), [home-automation](), [how-to](), [iot](), [practitioner](), [tutorial](), [wi-fi]() ### AI overview This tutorial introduces the ESP-IDF button component and shows how to handle physical buttons in ESP32 projects. It covers GPIO buttons, ADC button matrices, event detection, software debouncing, callbacks, thread safety, low-power support, and a basic GPIO example. ### Source excerpt Learn how to use the ESP-IDF button component to handle GPIO buttons with event detection, debouncing, and callbacks. A step-by-step guide with practical code examples. ## Power Management in NuttX DevFeed: [Power Management in NuttX]() Original publisher: [Read original article]() Author: John Lee Published: 2026-02-05T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [NuttX](), [Espressif](), [Embedded Systems](), [Embedded Software Dev](), [systems](), [ESP32](), [ESP32-C6]() Tags: [article](), [blog](), [efficiency](), [embedded](), [embedded-systems](), [esp32-c6](), [espressif](), [how-to](), [low-power](), [microcontrollers](), [nuttx](), [posix](), [power-management](), [practitioner]() ### AI overview This tutorial explains power management on Espressif devices using NuttX. It describes Espressif power modes, NuttX power-management states, how the states map to one another, and how to control sleep modes from the shell or a custom application. It also introduces governors and discusses power-consumption measurements across multiple ESP chips. ### Source excerpt This article walks through Espressif power modes and NuttX power states, then explains how they map to each other. Then it introduces NuttX's power management system and the concept of governors. The how-to part shows how to control sleep modes from the shell and a custom application. Finally, you will see real power-consumption measurements across multiple ESP chips to illustrate the practical impact using power states. ## Changes in the Configuration System in ESP-IDF v6: Default Values DevFeed: [Changes in the Configuration System in ESP-IDF v6: Default Values]() Original publisher: [Read original article]() Author: John Lee Published: 2025-12-22T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [configuration](), [ESP-IDF]() Tags: [blog](), [configuration](), [esp-idf](), [esp-idf-kconfig](), [idf-py](), [overview](), [practitioner](), [sdkconfig]() ### AI overview This tutorial explains how configuration and default values work in ESP-IDF v5 and older versions, then describes the revised default-value management process introduced in ESP-IDF v6. It also covers default-value conflicts, the idf.py refresh-config command available in ESP-IDF v6.1 and later, and alternatives for ESP-IDF v6.0. ### Source excerpt This article explains what are the default values in the ESP-IDF configuration and how they are managed in the configuration system in the upcoming ESP-IDF v6. The purpose and behavior of default values are described. This article also explains what is a conflict in default values and how to resolve it with the "idf.py refresh-config" command. ## Seeking symmetry during ATT&CK® season: How to harness today's diverse analyst and tester landscape to paint a security masterpiece DevFeed: [Seeking symmetry during ATT&CK® season: How to harness today's diverse analyst and tester landscape to paint a security masterpiece]() Original publisher: [Read original article]() Author: Márk Szabó James Shepperd Ben Tudor Published: 2025-12-10T15:03:51Z Content type: article Language: en Sources: [WeLiveSecurity]() Topics: [Endpoint Security & XDR](), [Cybersecurity](), [Resilience](), [Detection engineering](), [Threat Research]() Tags: [2025](), [analysts](), [article](), [attacks](), [business-security](), [ciso](), [cybersecurity](), [endpoint-security](), [enterprise](), [incident](), [industry](), [infrastructure](), [practitioner](), [report](), [resilience](), [security](), [testing]() ### AI overview The article explains how security practitioners can interpret and connect cybersecurity reports and tests from analyst firms and independent testing labs. It focuses on endpoint security, including product evaluations, feature testing, broader market analyses, and assessments against known advanced adversary attacks, to support more informed protection-stack and purchasing decisions. ### Source excerpt Interpreting the vast cybersecurity vendor landscape through the lens of industry analysts and testing authorities can immensely enhance your cyber-resilience. ## Optimizing RAM Usage on ESP32-C2 DevFeed: [Optimizing RAM Usage on ESP32-C2]() Original publisher: [Read original article]() Author: John Lee Published: 2025-11-28T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP32](), [ESP-IDF](), [Optimization]() Tags: [ble](), [blog](), [esp-idf](), [esp32](), [esp32-c2](), [how-to](), [memory-management](), [memory-optimization](), [optimization](), [practitioner](), [wi-fi]() ### AI overview This article explains how to optimize RAM usage on the ESP32-C2 with ESP-IDF v5.5. It describes the chip's memory layout, methods for measuring memory consumption, and configuration changes that can free more than 100 KB of additional memory in suitable applications. ### Source excerpt ESP32-C2 has 256 KB of physical RAM, but with default configurations, only 24 KB remains free in typical Wi-Fi + BLE scenarios. This article explores comprehensive memory optimization strategies that can free up over 100 KB of RAM, making complex applications viable on this cost-effective chip. ## Integrating External Libraries into NuttX Applications DevFeed: [Integrating External Libraries into NuttX Applications]() Original publisher: [Read original article]() Author: John Lee Published: 2025-11-19T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [NuttX](), [Library](), [Simulation](), [ESP32-C6](), [RISC-V](), [x86]() Tags: [blog](), [compilation](), [cross-compilation](), [esp32-c6](), [guide](), [how-to](), [libraries](), [library](), [nuttx](), [practitioner](), [risc-v](), [simulation](), [x86]() ### AI overview This guide explains how to integrate an external application library into NuttX using a static library and cross-compilation. It covers building the library on x86, testing it in the NuttX simulation environment, and cross-compiling it for RISC-V to run on the ESP32-C6. ### Source excerpt This guide demonstrates how to integrate external libraries into NuttX applications using static libraries and cross-compilation. Learn how to build a library on x86, integrate it into the NuttX simulation environment, and cross-compile for RISC-V targets like the ESP32-C6, all without moving your entire codebase into the NuttX directory structure. ## Debugging Embedded Graphics with Wokwi and AI: Solving a Raylib Color Mapping on ESP32 DevFeed: [Debugging Embedded Graphics with Wokwi and AI: Solving a Raylib Color Mapping on ESP32]() Original publisher: [Read original article]() Author: John Lee Published: 2025-10-24T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP32](), [debugging](), [Simulation](), [Embedded Systems](), [Testing](), [Artificial Intelligence](), [Warp](), [ESP-IDF]() Tags: [ai](), [blog](), [ci-cd](), [debugging](), [embedded](), [esp-idf](), [esp32](), [esp32-s3](), [graphics](), [library](), [porting](), [practitioner](), [simulation](), [testing](), [visual-testing](), [warp](), [wokwi]() ### AI overview The article describes using Wokwi simulation and Warp's AI vision capabilities to diagnose and fix an RGB565 color-mapping bug in a Raylib port for ESP32 devices. It presents screenshot-based visual debugging, rapid iteration, and automated testing as alternatives to repeated testing on physical hardware. ### Source excerpt Learn how Wokwi simulation and AI-assisted debugging solved a subtle RGB565 color mapping bug when porting Raylib to ESP32, turning hours of hardware debugging into an efficient iterative workflow with automated visual testing. ## ESP-IDF Tutorials: Basic HTTP server DevFeed: [ESP-IDF Tutorials: Basic HTTP server]() Original publisher: [Read original article]() Author: John Lee Published: 2025-06-26T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [HTTP](), [Espressif](), [servers](), [HTML](), [CMake](), [browser]() Tags: [article](), [blog](), [browser](), [cmake](), [devices](), [esp](), [esp-idf](), [espressif](), [html](), [http-server](), [practitioner](), [tutorial](), [tutorials]() ### AI overview This tutorial explains how to set up a basic HTTP server with ESP-IDF, create a URI route that serves an HTML page, and view that page in a web browser on Espressif devices. ### Source excerpt This article shows how to create a simple HTTP server. It explains the functions you need and the setup required. After reading this, you should be able to create your own HTTP server on Espressif devices. ## Distributed Consensus: Beating Impossibility with Probability One DevFeed: [Distributed Consensus: Beating Impossibility with Probability One]() Original publisher: [Read original article]() Author: Marc Brooker Published: 2014-01-12T00:00:00Z Content type: article Language: en Sources: [Marc Brooker's Blog](), [Marc Brooker's Blog]() Topics: [distributed-systems](), [systems](), [Algorithm]() Tags: [distributed-systems](), [practitioner](), [research](), [systems]() ### AI overview The article explains why impossibility proofs matter in distributed systems and how clearly defined system models can reveal ways to work around them. It highlights Ben-Or's randomized consensus algorithm, which achieves consensus with probability one in a slightly modified asynchronous message-passing model. ### Source excerpt Distributed Consensus: Beating Impossibility with Probability One Distributed systems models are critical to understanding impossibility results Reading Nancy Lynch's 1989 paper A Hundred Impossibility Proofs for Distributed Computing was the first time I came to a real understanding of the value of impossibility proofs. Before reading it, I was aware of many of the famous impossibility proofs, including Brewer's CAP Theorem, FLP impossibility and the lower bounds of number of rounds needed for consensus, but I'd always held existence proofs to be somehow more important. My attitude was along these lines: What good are impossibility results, anyway? They don't seem very useful at first, since they don't allow computers to do anything they couldn't previously. Following that question (in Section 3.5 of A Hundred Impossibility Proofs), Lynch goes on to justify the importance of impossibility proofs. The whole case is worth reading, but the one that resonates with me most strongly as a practitioner is: ... the effect of the impossibility result might be to make a systems developer clarify his/her claims about what the system accomplishes. Nearly 25 years have passed since the publication of this paper, and that remains something of a hopeful dream. Despite the efforts of Lynch, Lamport, Aphyr, Daniel Abadi and many others, there's still a long way to go in having distributed systems developers clearly state the guarantees their systems are making. Another effect of impossibility proofs, and the clear definition of the models in which they exist, has been research into how little it is possible to change the model to get around the impossibility result. Easily my personal favorite result in this area is another paper from the 1980s, Michael Ben-Or's Another Advantage of Free Choice: Completely Asynchronous Agreement Protocols from 1983 (sadly, I can't seem to find an open-access version of that paper), and a similar result by Rabin in the same year. Ben-Or looked at the F