# Posts by Rolando Andrade

> Blog posts about software, products, teaching and life. Newest first. Each link is the markdown copy of the post.

- [DEVLog - October](https://rolandoandrade.me/blog/devlog-october-2026.md): 2026. Discover what happened in October 2026. Qualified signatures opened as a private beta at SignatureAPI, six public framework starters shipped, and ParentSignature for Schools got ready for launch.
- [DEVLog - September](https://rolandoandrade.me/blog/devlog-september-2026.md): 2026. Discover what happened in September 2026, my biggest month on GitHub. SignatureAPI got public agent skills and mobile demos, StepCode v2 shipped, and the school app learned to talk to AI assistants.
- [DEVLog - August](https://rolandoandrade.me/blog/devlog-august-2026.md): 2026. Discover what happened in August 2026. Qualified signatures took shape at SignatureAPI, the ChatGPT app went public, ParentSignature for Schools rebuilt its roster, and a tiny virtual dog appeared.
- [DEVLog - July](https://rolandoandrade.me/blog/devlog-july-2026.md): 2026. Discover what happened in July 2026. SignatureAPI started on qualified signatures and Brazilian attestations, ParentSignature for Schools began, and Privacy Policy Review got real checkout.
- [DEVLog - June](https://rolandoandrade.me/blog/devlog-june-2026.md): 2026. Discover what happened in June 2026. A record month of pull requests at SignatureAPI, NotuDocs split in two, and a small open source notebook called Story Studio.
- [DEVLog - May](https://rolandoandrade.me/blog/devlog-may-2026.md): 2026. Discover what happened in May 2026. AI agents can now send envelopes through the SignatureAPI MCP server, and I published a free Czech course for Spanish speakers.
- [DEVLog - April](https://rolandoandrade.me/blog/devlog-april-2026.md): 2026. Discover what happened in April 2026. ParentSignature got a page for schools, SignatureAPI got automatic signers and a new website, and Letters to the Stars got a compendium.
- [Do Things Like They Matter](https://rolandoandrade.me/blog/do-things-like-they-matter.md): 2026. We live in the era of getting things done fast. But when everything is optimized for speed, you stop asking 'is this beautiful?' and only ask 'does this work?' Building Letters to the Stars reminded me that your work can be a work of art.
- [DEVLog - March](https://rolandoandrade.me/blog/devlog-march-2026.md): 2026. Discover what happened in March 2026. I built Letters to the Stars, started ParentSignature, launched NotuDocs, and wrote new SignatureAPI guides.
- [I'm Leaving Portugal and I Don't Know Where I'm Going](https://rolandoandrade.me/blog/leaving-portugal.md): 2026. After almost six months in Portugal, I have to leave. The problem is I don't know where to go next. A post about moving countries, not belonging anywhere, and making big decisions with incomplete information.
- [DEVLog - February](https://rolandoandrade.me/blog/devlog-february-2026.md): 2026. Discover what happened in February 2026. NotuDocs was born, the SignatureAPI dashboard moved to Next.js 16, and Privacy Policy Review learned to read PDFs.
- [DEVLog - January](https://rolandoandrade.me/blog/devlog-january-2026.md): 2026. Discover what happened in January 2026. This month features Claude Code supercharging my workflow, IMG Processing v2 and PrivacyPolicyReview progress, nearly 10 new prototypes, and a WhatsApp/Instagram chatbot for businesses.
- [DEVLog - November](https://rolandoandrade.me/blog/devlog-november-2025.md): 2025. November 2025 updates. I share my transition to life in Portugal and the launch of my new YouTube channel focused on authentic storytelling and software engineering.
- [DEVLog - September](https://rolandoandrade.me/blog/devlog-september-2025.md): 2025. Discover my latest projects from September 2025. I introduce Fiu Fiu, a virtual wardrobe powered by AI, and share progress on Scan Documents and IMG Processing.
- [DEVLog - August](https://rolandoandrade.me/blog/devlog-august-2025.md): 2025. Discover the latest updates from August 2025. I discuss the Scan Documents launch on Product Hunt, new features for IMG Processing, and the emotional closing of AI José Gregorio.
- [DEVLog - July](https://rolandoandrade.me/blog/devlog-july-2025.md): 2025. Reflecting on July 2025. I share the results of the Scan Documents launch on Product Hunt, milestones for IMG Processing, and the growth of SignatureAPI.
- [DEVLog - June](https://rolandoandrade.me/blog/devlog-june-2025.md): 2025. Discover the updates from June 2025. I share the launch of the Scan Documents API, new SDKs for IMG Processing, and my journey with SignatureAPI.
- [DEVLog - May](https://rolandoandrade.me/blog/devlog-may-2025.md): 2025. Explore the updates from May 2025. This month I share the soft launch of the Scan Documents API, achieving HIPAA compliance with SignatureAPI, and managing project roadblocks.
- [DEVLog - April](https://rolandoandrade.me/blog/devlog-april-2025.md): 2025. Discover what happened in April 2025. This month showcases the development of Scan Documents API with dedicated landing page, IMG Processing documentation improvements, and the launch of Privacy Policy Review project.
- [How to Create a Programming Language](https://rolandoandrade.me/blog/how-to-create-a-programming-language.md): 2025. Learn how to create your own programming language interpreter. Explore Abstract Syntax Trees (AST), ANTLR4, grammar design, and language implementation using StepCode as a practical example.
- [How to Speed Up a Heavy Web App](https://rolandoandrade.me/blog/how-to-speed-up-a-heavy-web-app.md): 2025. Discover what happened in April 2025. This month features a deep dive into optimizing heavy web apps using Web Workers, WebP, OPFS, and more.
- [DEVLog - March](https://rolandoandrade.me/blog/devlog-march-2025.md): 2025. Discover what happened in March 2025. This month celebrates the official launch of Scan Documents, IMG Processing getting its first paid customer, and my website redesign with Astro. Development updates and project milestones inside!
- [Presenting Scan Documents](https://rolandoandrade.me/blog/presenting-scan-documents.md): 2025. Discover what happened in March 2025. This month features the launch of Scan Documents, an app to solve personal archiving problems.
- [DEVLog - February](https://rolandoandrade.me/blog/devlog-february-2025.md): 2025. Discover what happened in February 2025. This month showcases Scan Documents app progress with memory optimization, IMG Processing API test suite improvements, SignatureAPI Power Automate connector updates, and my website migration journey to Astro.
- [DEVLog - January](https://rolandoandrade.me/blog/devlog-january-2025.md): 2025. Discover what happened in January 2025. This month features the launch of Scan Documents app, IMG Processing API updates with OCR text extraction, SignatureAPI growth milestones, revived AI projects, and exciting YouTube channel plans.
- [The 26th Chapter Starts](https://rolandoandrade.me/blog/the-26th-chapter-starts.md): 2024. Discover what happened in December 2024. This month features reflections on turning 26, travels to Mexico and Portugal, launches like IMG Processing, and career shifts.
- [Creating Offline-First Applications](https://rolandoandrade.me/blog/creating-offline-first-applications.md): 2024. Discover what happened in October 2024. This month features a deep dive into offline-first applications, client-server architecture, and consistency models.
- [I was Wrong. Communication is the Only Skill you Really Need](https://rolandoandrade.me/blog/i-was-wrong-communication-is-the-only-skill-you-really-need.md): 2024. Discover what happened in October 2024. This month features a realization about the importance of communication skills over work-life balance.
- [IMG Processing AI Features](https://rolandoandrade.me/blog/img-processing-ai-features.md): 2024. Discover what happened in October 2024. This month features an exploration of AI capabilities in IMG Processing, including image generation, classification, and background removal.
- [DEVLog - September](https://rolandoandrade.me/blog/devlog-september-2024.md): 2024. Discover what happened in September 2024. This month features IMG Processing release for image processing integration, SignatureAPI updates with API playground and storage features, leaving my teaching position, and plans for the future including YouTube content creation.
- [Experimenting with the IMG Processing SDK](https://rolandoandrade.me/blog/experimenting-with-the-img-processing-sdk.md): 2024. Discover what happened in September 2024. This month features a tutorial on using the IMG Processing SDK for Node.js image manipulation.
- [Is the Future Already Written?](https://rolandoandrade.me/blog/is-the-future-already-written.md): 2024. Discover what happened in September 2024. This month features reflections on causality, prediction, and rewriting destiny.
- [Presenting IMG Processing](https://rolandoandrade.me/blog/presenting-img-processing.md): 2024. Discover what happened in September 2024. This month features the launch of IMG Processing, a powerful API and SDK for image manipulation and analysis.
- [Starting Again](https://rolandoandrade.me/blog/starting-again.md): 2024. Discover what happened in September 2024. This month reflects on a fresh start with IMG Processing launches, a new posting schedule, and personal updates.
- [How to Exploit Lunar Resources and Bring them to Earth](https://rolandoandrade.me/blog/how-to-exploit-lunar-resources-and-bring-them-to-earth.md): 2024. Discover what happened in July 2024. This month features crazy ideas for transporting lunar resources to Earth, from space elevators to baseball.
- [DEVLog - June](https://rolandoandrade.me/blog/devlog-june-2024.md): 2024. Discover what happened in June 2024. This month features Bezier offline-first challenges, SignatureAPI subscription growth, and AI/ML teaching projects including Cloudflare AI deployment, Azure ML, Coqui-TTS voice chatbot, and Gymnasium reinforcement learning experiments.
- [DEVLog - May](https://rolandoandrade.me/blog/devlog-may-2024.md): 2024. Discover what happened in May 2024. This month features Bezier offline-first development, SignatureAPI growth with dozens of new users weekly, and AI/ML teaching projects including background removal, image upscaling, audio denoising, Bitcoin trading bot, and Spanish-English translator.
- [Storing Sortable Items in a Relational Database](https://rolandoandrade.me/blog/storing-sortable-items-in-a-relational-database.md): 2024. Discover what happened in May 2024. This month features a technical deep dive into implementing drag-and-drop sorting in relational databases using integer gaps, buckets, and more.
- [DEVLog - April](https://rolandoandrade.me/blog/devlog-april-2024.md): 2024. Discover what happened in April 2024. This month features Bezier progress with real-time collaboration and API integration, plus AI/ML teaching projects including ChromAI, ScreenBuddy, Identity face recognition, and AlexNet deep learning.
- [Serverless Revolution](https://rolandoandrade.me/blog/serverless-revolution.md): 2024. Discover what happened in April 2024. This month features deployment strategies using Cloudflare, Vercel, and other serverless platforms for zero-cost development.
- [DEVLog - March](https://rolandoandrade.me/blog/devlog-march-2024.md): 2024. Discover what happened in March 2024. This month introduces Bezier (a beautiful documentation tool built with Drawmatic), SignatureAPI private beta launch, and new AI/ML projects for teaching. Development updates and early access info inside.
- [Never Stop Learning](https://rolandoandrade.me/blog/never-stop-learning.md): 2024. Discover what happened in March 2024. This month features insights on lifelong learning, adapting to AI, and personal growth.
- [DEVLog - February](https://rolandoandrade.me/blog/devlog-february-2024.md): 2024. Discover what happened in February 2024. This month features Drawmatic progress with new features, AWS CloudFormation infrastructure design, and accepting an AI/ML professor role. Project updates and March plans inside.
- [My Top 10 Anime List](https://rolandoandrade.me/blog/my-top-10-anime-list.md): 2024. Discover what happened in February 2024. This month features a curated list of top 10 anime series, spanning childhood favorites to modern masterpieces.
- [Everyone Wants to be Good](https://rolandoandrade.me/blog/everyone-wants-to-be-good.md): 2024. Discover what happened in February 2024. This month features reflections on human goodness, cooperation, and the desire for virtue.
- [DEVLog - January](https://rolandoandrade.me/blog/devlog-january-2024.md): 2024. Discover what happened in January 2024. This month features Drawmatic beta progress with diagram chicken legs, GitHub yearbook project for students, SignatureAPI platform updates, and exploring Telegram Mini Apps for Valentine's Day.
- [My Life as a Professor](https://rolandoandrade.me/blog/my-life-as-a-professor.md): 2024. Discover what happened in January 2024. This month features reflections on a semester of teaching at the university.
- [What's Next?](https://rolandoandrade.me/blog/what-is-next.md): 2024. Discover what happened in January 2024. This month features a look ahead at goals for the new year, including health, fitness, language learning, and personal projects.
- [(2) Programming Fundamentals: Pseudocode](https://rolandoandrade.me/blog/programming-fundamentals-pseudocode.md): 2023. Discover what happened in December 2023. This month features a comprehensive guide to pseudocode, its rules, and conventions for algorithm design.
- [Trust Your Instincts. It's Definitely a Scam!](https://rolandoandrade.me/blog/trust-your-instincts-its-definitely-a-scam.md): 2023. Discover what happened in December 2023. This month features a discussion on identifying scams, using 'The Day Before' as a case study for trusting your instincts.
- [(1) Programming Fundamentals: Algorithms](https://rolandoandrade.me/blog/programming-fundamentals-design-and-development-of-algorithms.md): 2023. Discover what happened in December 2023. This month features a deep dive into algorithms, their characteristics, and representations like flowcharts and pseudocode.
- [A Quarter of a Century](https://rolandoandrade.me/blog/a-quarter-of-a-century.md): 2023. Discover what happened in December 2023. This month features reflections on turning 25, a solo trip to Europe, and new beginnings.
- [DEVLog - October & November](https://rolandoandrade.me/blog/devlog-november-2023.md): 2023. Discover what happened in October & November 2023. This month features StepCode programming language and IDE creation for students, Drawmatic chicken legs feature, habit tracker MVP development, and an elections solution project.
- [Building Software for Dinosaurs' Needs](https://rolandoandrade.me/blog/building-software-solutions-for-dinosaurs-needs.md): 2023. Discover what happened in October 2023. This month features challenges in building software for users with outdated practices and finding balance.
- [DEVLog - September](https://rolandoandrade.me/blog/devlog-september-2023.md): 2023. Discover what happened in September 2023. This month features the Me app release on Google Play, Drawmatic open-source canvas library development with Diagrams Builder and JSON Viewer demos, clinic sheets software for healthcare, and my new role as a college professor.
- [Operation Swiftification: The day I created a Squad of Swifties](https://rolandoandrade.me/blog/operation-swiftification.md): 2023. Discover what happened in September 2023. This month features a fun story about convincing a group of friends to become Taylor Swift fans.
- [The Importance of a Landing Page: A Lesson from Launching an AI Medical Assistant](https://rolandoandrade.me/blog/the-importance-of-a-landing-page-a-lesson-from-launching-an-ai-medical-assistant.md): 2023. Discover what happened in September 2023. This month features a case study on launching AI José Gregorio and the crucial role a landing page plays in user adoption.
- [Unlock Your Potential and Embrace Your Passions with "Me"](https://rolandoandrade.me/blog/presenting-me.md): 2023. Discover what happened in September 2023. This month features the launch of 'Me', a mobile application designed to help you set and achieve goals.
- [DEVLog - August](https://rolandoandrade.me/blog/devlog-august-2023.md): 2023. Discover what happened in August 2023. This month features the launch of AI José Gregorio medical assistant with 100+ users, Me app development for goal tracking, and reflections on taking a break from the job search to focus on building projects.
- [AI José Gregorio: Un Salvavidas en Medio de la Crisis](https://rolandoandrade.me/blog/ai-jose-gregorio-un-salvavidas-en-medio-de-la-crisis.md): 2023. Discover what happened in August 2023. This month features the launch of AI José Gregorio, a medical assistant for Venezuelans during the crisis.
- [Presenting AI José Gregorio: A Lifesaver in The Midst of Crisis](https://rolandoandrade.me/blog/presenting-ai-josegregorio.md): 2023. Discover what happened in August 2023. This month features the launch of AI José Gregorio, a medical assistant for Venezuelans during the health crisis.
- [The Ease of Modern Travel](https://rolandoandrade.me/blog/the-ease-of-modern-travel.md): 2023. Discover what happened in August 2023. This month features insights on how modern technology and affordable options have made travel accessible to everyone.
- [Likes](https://rolandoandrade.me/blog/likes.md): 2023. Discover what happened in August 2023. This month features a personal sharing of hobbies including video games, movies, gym, cooking, and learning.
- [My Journey from Sedentary Developer to Gym Enthusiast](https://rolandoandrade.me/blog/my-journey-from-sedentary-developer-to-gym-enthusiast.md): 2023. Discover what happened in July 2023. This month features a personal transformation story from a sedentary lifestyle to becoming a gym enthusiast.
- [The Day I Became a Firefighter](https://rolandoandrade.me/blog/the-day-i-became-a-firefighter.md): 2023. Discover what happened in July 2023. This month features a thrilling story about accidentally becoming a firefighter during a blackout in Venezuela.
- [Living the Dream](https://rolandoandrade.me/blog/living-the-dream.md): 2023. Discover what happened in July 2023. This month features personal achievements, cooking adventures, and becoming a professor.
- [Make the Most of Your Time](https://rolandoandrade.me/blog/make-the-most-of-your-time.md): 2023. Discover what happened in July 2023. This month features insights on the value of time and negotiating abusive contract clauses.
- [Is It Wrong to Try to Pick Up Girls on LinkedIn?](https://rolandoandrade.me/blog/is-it-wrong-to-pick-up-girls-on-linkedin.md): 2023. Discover what happened in July 2023. This month features a humorous experiment of using LinkedIn as a dating app and findings on romance.
- [Why Developing a Product Against the Business Model Spells Trouble](https://rolandoandrade.me/blog/why-developing-a-product-against-the-business-model-spells-trouble.md): 2023. Discover what happened in July 2023. This month features an analysis of why misaligning product development with the business model can lead to failure.
- [Why I Stopped Playing Chess](https://rolandoandrade.me/blog/why-i-stopped-to-play-chess.md): 2023. Discover what happened in July 2023. This month features a personal story about quitting chess to regain self-control and balance in life.
- [Problem-Solving Like a Pro](https://rolandoandrade.me/blog/problem-solving-like-a-pro.md): 2023. Discover what happened in June 2023. This month features strategies for effective problem-solving, including breaking down issues and generating multiple solutions.
- [Rolando's Perfect Date](https://rolandoandrade.me/blog/my-perfect-date.md): 2023. Discover what happened in June 2023. This month features a visualization of a perfect romantic date, complete with park walks and stargazing.
- [Staying True to Your Passion](https://rolandoandrade.me/blog/staying-true-to-your-passion.md): 2023. Discover what happened in June 2023. This month features reflections on overcoming job hunting frustration by reconnecting with the passion for software development.
- [How Dolphins Showed Me the True Meaning of Life](https://rolandoandrade.me/blog/how-dolphins-showed-me-the-true-meaning-of-life.md): 2023. Discover what happened in June 2023. This month features a funny epiphany at a dolphin show about finding joy and success in life.
- [The Best Investment of Your Dev Life](https://rolandoandrade.me/blog/the-ultimate-investment-of-your-life.md): 2023. Discover what happened in June 2023. This month features a guide on why investing in a high-quality ergonomic chair is crucial for developers' health and productivity.
- [Solo Travel: An Unforgettable Adventure](https://rolandoandrade.me/blog/solo-travel-an-unforgettable-adventure.md): 2023. Discover what happened in May 2023. This month features reflections on a solo trip through Spain and Portugal, exploring freedom, personal growth, and new connections.
- [Mentoring: A Journey of Personal and Professional Growth](https://rolandoandrade.me/blog/the-power-of-mentorship-a-journey-of-personal-and-professional-growth.md): 2023. Discover what happened in April 2023. This month features a personal reflection on the transformative power of mentorship and its impact on personal and professional growth.
- [Mastering the Art of Remote Work](https://rolandoandrade.me/blog/mastering-the-art-of-remote-work.md): 2023. Discover what happened in April 2023. This month features actionable tips for mastering remote work, covering workspace, routine, and communication.
- [My Disappointing Experience with Tinder](https://rolandoandrade.me/blog/my-disappointing-experience-with-tinder.md): 2023. Discover what happened in March 2023. This month features a personal account of using Tinder, discussing its superficiality and limitations.
- [Artificial intelligence will not take your job (yet)](https://rolandoandrade.me/blog/artificial-intelligence-will-not-take-your-job-yet.md): 2023. Discover what happened in March 2023. This month features thoughts on AI replacing jobs, its current clumsiness, and why it won't replace us yet.
- [Work-life balance is the only skill you really need](https://rolandoandrade.me/blog/work-life-balance-is-the-only-skill-you-really-need.md): 2023. Discover what happened in March 2023. This month features insights on achieving work-life balance and why it is essential for well-being and productivity.
- [Hello World!](https://rolandoandrade.me/blog/hello-world.md): 2023. Discover what happened in March 2023. This month features the beginning of my blogging journey and the motivation behind it.