Structured Output with LangChain and Llamafile
Learn how to extend Llamafile with LangChain’s JsonParser to produce clean, structured JSON output
Coding
Software is hard
Latest posts
Enterprise Geospatial Solutions with QGIS and Angular
This article shows how to combine QGIS Desktop/Server with Docker Compose and Kubernetes to build scalable geospatial applications. It also covers creating a web client using Angular (or a minimal JavaScript approach), integrating OpenLayers for map rendering, and ensuring all components work seamlessly together.
Writing a Keycloak-PKCE Library in C++
This article offers a personal look at a C++ library implementing PKCE with Keycloak. It’s intended more as a learning exercise than a production-ready solution. You’ll find a C wrapper and additional Python and Lua wrappers, plus a quick rundown on PKCE fundamentals, library structure, and example demos.
Lessons Learned from Deploying Keycloak with Angular and BFF
This article details the deployment of an Angular application, a backend-for-frontend (BFF) built with Express.js, and a Keycloak server on a Windows Server using IIS. It explores the challenges encountered when moving from a local setup to a production environment, including session handling, secure communication, and configuring KeycloakStrategy.
Keycloak, Angular, and the BFF Pattern
This article explains implementing the BFF pattern with Angular, Express.js, and Keycloak to secure web applications. Learn how to handle authentication flows server-side, eliminate client-side token storage, and maintain separation between frontend and security operations. Includes practical configuration steps for Keycloak realms, Express.js sessions, and Angular's authentication service.
PKCE with Keycloak and Passport
Discover how passport-keycloak-oauth2-oidc-portable integrates Keycloak with OAuth2 and OpenID Connect (OIDC) using the secure Proof Key for Code Exchange (PKCE) protocol. This article explores implementing PKCE to protect public clients like desktop and single-page applications from common authentication vulnerabilities such as CSRF and authorization code interception. Learn about setting up a…
Using Bosque in JupyterLab
Discover the innovative world of Bosque, a programming language developed by Microsoft Research that champions the regularized programming paradigm. In this post, I explore the key advantages of Bosque, such as immutable state and intent-focused coding, and share my journey integrating it into JupyterLab. Learn how I developed custom kernels in Python and crafted syntax highlighting extensions…
Automating Keycloak Deployments for Fun and Profit
This article will be a practical one as I intend to showcase a fully automated setup of Keycloak for local testing. However, unlike so many examples out there, this article aims to deploy a production-level Keycloak deployment that uses a Certificate Manager, Sealed Secrets, and PostgreSQL HA (high-availability variant). The goal is to create a [ ]
Parallel Computing in Node.js via HPX Addons
Explore building a Node.js addon with HPX, a C++ parallelization framework. This article covers the integration challenges, such as managing asynchronous operations and reducing performance overhead. Learn how batch predicate functions can enhance the performance of complex algorithms like countIf and sort, while simpler tasks see limited gains. Ideal for developers interested in combining…
Revisiting HPX
This article explores the powerful parallelization and distributed computing capabilities of the HPX framework. Starting with installation on macOS, it walks through configuring, compiling, and testing HPX on a modest machine, highlighting key features like asynchronous programming, task-based parallelism, and HPX components. Whether new to HPX or looking for practical examples, this guide offers…