I'm a full-stack developer focused on building fast, reliable applications. I’m passionate about open-source, blockchain, and decentralized finance, working primarily with JavaScript, Python, Rust, and Go.https://nenbajonathan.com/https://nenbajonathan.com/posts/chatbot-or-ai-agent-where-is-your-head-at/https://nenbajonathan.com/posts/chatbot-or-ai-agent-where-is-your-head-at/Chatbots are everywhere. AI agents are the new hype. As a developer, where should you focus? Here is a clear and practical perspective.Fri, 06 Mar 2026 12:28:00 GMThttps://nenbajonathan.com/posts/what-happened-when-i-moved-my-apps-to-my-own-server/https://nenbajonathan.com/posts/what-happened-when-i-moved-my-apps-to-my-own-server/Within an hour of going live on Hetzner, bots were already trying to break in. Here's what I did to lock down my server using SSH keys, Fail2ban, UFW, and real-time monitoring with Betterstack.Thu, 26 Feb 2026 15:00:00 GMThttps://nenbajonathan.com/posts/secure-rust-code-trivy-local-scan-github-actions/https://nenbajonathan.com/posts/secure-rust-code-trivy-local-scan-github-actions/Learn how to use Trivy to scan your tust project for vulnerabilities, from a quick local scan to a fully automated gitHub actions pipeline.Tue, 10 Feb 2026 15:00:00 GMThttps://nenbajonathan.com/posts/optimizing-docker-images-rust-production/https://nenbajonathan.com/posts/optimizing-docker-images-rust-production/After migrating to self-hosted VPS with Kamal Deploy, my disk filled up fast. Here's how I optimized Rust docker images and automated cleanup.Sat, 07 Feb 2026 14:30:00 GMThttps://nenbajonathan.com/posts/infrastructure-monitoring-without-touching-code/https://nenbajonathan.com/posts/infrastructure-monitoring-without-touching-code/You don't need to change your app code to have great monitoring. Learn how we used Prometheus and Grafana to keep a blockchain platform running at 95.5% uptime.Wed, 28 Jan 2026 10:00:00 GMThttps://nenbajonathan.com/posts/how-i-structure-environments-dev-staging-prod/https://nenbajonathan.com/posts/how-i-structure-environments-dev-staging-prod/Environment separation is a discipline, not a tool choice. Learn how to properly structure dev, staging, and production environments regardless of your infrastructure.Tue, 20 Jan 2026 15:30:00 GMThttps://nenbajonathan.com/posts/bitcoin-ecdsa-digital-signatures-explained-for-developers/https://nenbajonathan.com/posts/bitcoin-ecdsa-digital-signatures-explained-for-developers/Learn how ECDSA digital signatures secure Bitcoin transactions, with clear explanations and practical Rust code for key generation, signing, and verification.Fri, 16 Jan 2026 14:27:00 GMThttps://nenbajonathan.com/posts/bitcoin-ecc-elliptic-curve-for-developers-secp256k1/https://nenbajonathan.com/posts/bitcoin-ecc-elliptic-curve-for-developers-secp256k1/Discover how secp256k1 elliptic curve secures Bitcoin transactions, with key generation, digital signatures, and verificationSun, 07 Dec 2025 02:00:00 GMThttps://nenbajonathan.com/posts/code-is-law-cypherpunk-cyberpunk/https://nenbajonathan.com/posts/code-is-law-cypherpunk-cyberpunk/Explore the philosophies of Code Is Law, Cypherpunk, and the Cyberpunk movement, and understand their impact on privacy, freedom, and technology in our digital world.Thu, 04 Dec 2025 20:00:00 GMThttps://nenbajonathan.com/posts/gpg-for-developers-securing-communications-files-git-commits/https://nenbajonathan.com/posts/gpg-for-developers-securing-communications-files-git-commits/Learn how to use GPG keys to encrypt messages, sign files, and verify Git commits, ensuring authenticity and trust in your projects.Fri, 28 Nov 2025 02:00:00 GMThttps://nenbajonathan.com/posts/4-advanced-git-commands-every-developer-should-know/https://nenbajonathan.com/posts/4-advanced-git-commands-every-developer-should-know/Master these four advanced Git commands to recover lost commits, clean up your history, and take full control of your workflow.Mon, 06 Oct 2025 01:46:00 GMThttps://nenbajonathan.com/posts/caching-function-in-python-using-the-lru-cache-strategy/https://nenbajonathan.com/posts/caching-function-in-python-using-the-lru-cache-strategy/Improve considerably the performance of your python applications with the lru_cache decoratorSun, 05 Nov 2023 03:00:00 GMThttps://nenbajonathan.com/posts/create-2-million-records-in-a-database-from-a-single-sql-query/https://nenbajonathan.com/posts/create-2-million-records-in-a-database-from-a-single-sql-query/In this post, you'll learn how to generate a mass of data using WITH RECURSIVE clause.Sun, 15 Oct 2023 02:11:00 GMThttps://nenbajonathan.com/posts/building-a-simple-api-with-golang-using-gin-gonic/https://nenbajonathan.com/posts/building-a-simple-api-with-golang-using-gin-gonic/I am going to teach you how to create a simple API with Gin-gonic in GoFri, 29 Sep 2023 07:57:18 GMThttps://nenbajonathan.com/posts/what-is-ulid-and-why-should-you-start-using-it/https://nenbajonathan.com/posts/what-is-ulid-and-why-should-you-start-using-it/A brief overview of ULID and how to use it.Thu, 21 Sep 2023 02:25:18 GMThttps://nenbajonathan.com/posts/node-20-6-0-now-supports-built-in-env-files/https://nenbajonathan.com/posts/node-20-6-0-now-supports-built-in-env-files/Learn how to manage .env with node 20.6.0 without using an external package.Sun, 17 Sep 2023 02:00:00 GMThttps://nenbajonathan.com/posts/scheduling-tasks-in-golang-with-atomicgo/https://nenbajonathan.com/posts/scheduling-tasks-in-golang-with-atomicgo/Learn to schedule tasks execution in golang with atomicgoFri, 15 Sep 2023 19:17:18 GMThttps://nenbajonathan.com/posts/how-to-check-if-an-object-has-a-property-or-key-javascript/https://nenbajonathan.com/posts/how-to-check-if-an-object-has-a-property-or-key-javascript/Discover the different methods for checking whether an object has a specific property or key in JavaScript.Sat, 25 Feb 2023 02:35:18 GMThttps://nenbajonathan.com/posts/mutationobserver-to-listen-to-any-html-element-in-your-dom-javascript/https://nenbajonathan.com/posts/mutationobserver-to-listen-to-any-html-element-in-your-dom-javascript/Learn how to use MutationObserver to monitor changes to HTML elements in your DOM in JavaScript.Fri, 30 Dec 2022 11:16:18 GMThttps://nenbajonathan.com/posts/most-used-database-design-in-a-microservice-architecture/https://nenbajonathan.com/posts/most-used-database-design-in-a-microservice-architecture/Which database design should you choose for your application on microservices architecture?Tue, 22 Nov 2022 02:03:18 GMThttps://nenbajonathan.com/posts/integrate-makefile-into-your-routine-as-a-python-developer/https://nenbajonathan.com/posts/integrate-makefile-into-your-routine-as-a-python-developer/Automate your Python development tasks by integrating a Makefile into your daily workflow.Sat, 12 Nov 2022 08:57:18 GMThttps://nenbajonathan.com/posts/create-a-simple-python-web-service-dockerize-and-publish-it/https://nenbajonathan.com/posts/create-a-simple-python-web-service-dockerize-and-publish-it/Set up a python API with FastAPI, build a docker image and publish it on the docker registry.Wed, 09 Nov 2022 01:51:18 GMThttps://nenbajonathan.com/posts/package-management-basics-for-web-developer/https://nenbajonathan.com/posts/package-management-basics-for-web-developer/Know what a package manager is and which are the most used and how they work.Fri, 04 Nov 2022 14:50:18 GMThttps://nenbajonathan.com/posts/as-tu-entendu-parler-de-la-finance-decentralisee-ou-defi/https://nenbajonathan.com/posts/as-tu-entendu-parler-de-la-finance-decentralisee-ou-defi/DeFi se résume à un système financier meilleur et plus rapide basé sur la technologie blockchain. Un système qui ne discrimine pas en fonction de la localisation géographique et de l'accessibilité, un système où l'individu est responsable.Tue, 08 Sep 2020 10:41:18 GMThttps://nenbajonathan.com/posts/je-vous-fais-un-decryptage-de-mozacoin/https://nenbajonathan.com/posts/je-vous-fais-un-decryptage-de-mozacoin/Mozacoin est en ligne, découvrez quelques informations sur le projet et ce qu'on veut mettre en place.Wed, 12 Aug 2020 21:38:18 GMThttps://nenbajonathan.com/posts/scanne-moi-tout-savoir-sur-le-qr-code/https://nenbajonathan.com/posts/scanne-moi-tout-savoir-sur-le-qr-code/Comment le QR Code a bouleversé le quotidien des gens dans le monde.Fri, 31 Jul 2020 13:45:18 GMThttps://nenbajonathan.com/posts/parlons-un-peu-de-la-crypto-economie/https://nenbajonathan.com/posts/parlons-un-peu-de-la-crypto-economie/La révolution FinTech et les cryptomonnaies ne vivent plus dans leur propre monde spécial et indépendant, hors de portée de la réglementation nationale.Mon, 20 Jul 2020 20:00:18 GMThttps://nenbajonathan.com/posts/tu-peux-tout-faire-avec-ton-telephone/https://nenbajonathan.com/posts/tu-peux-tout-faire-avec-ton-telephone/Redécouvrez la puissance que vous avez avec votre téléphone portable.Sat, 04 Jul 2020 16:10:18 GMThttps://nenbajonathan.com/posts/ta-securite-en-ligne-c-est-toi-qui-l-assures/https://nenbajonathan.com/posts/ta-securite-en-ligne-c-est-toi-qui-l-assures/Internet, c'est la jungle, quelques conseils et astuces pour assurer votre sécurité.Sun, 28 Jun 2020 15:07:18 GMThttps://nenbajonathan.com/posts/ce-que-vous-devez-savoir-sur-les-reseaux-sociaux/https://nenbajonathan.com/posts/ce-que-vous-devez-savoir-sur-les-reseaux-sociaux/La vérité choquante que nous devons accepter en ce qui concerne les réseaux sociaux.Sun, 14 Jun 2020 14:13:18 GMThttps://nenbajonathan.com/posts/le-paiement-electronique-en-periode-du-covid-19-en-afrique/https://nenbajonathan.com/posts/le-paiement-electronique-en-periode-du-covid-19-en-afrique/Acteurs du paiement électronique en Afrique et opportunités à l'ère du COVID-19.Sun, 07 Jun 2020 11:48:18 GMThttps://nenbajonathan.com/posts/et-si-les-gouvernements-optaient-pour-la-technologie-blockchain/https://nenbajonathan.com/posts/et-si-les-gouvernements-optaient-pour-la-technologie-blockchain/L'adoption de la blockchain par les gouvernements : enjeux, opportunités et impact sur les services publics et l'infrastructure numérique.Sat, 23 May 2020 15:58:18 GMThttps://nenbajonathan.com/posts/le-mariage-entre-la-realite-virtuelle-vr-et-l-education/https://nenbajonathan.com/posts/le-mariage-entre-la-realite-virtuelle-vr-et-l-education/L'impact de la réalité virtuelle sur le processus d'éducation et son évolution.Fri, 15 May 2020 14:00:18 GMThttps://nenbajonathan.com/posts/ce-que-j-aurais-aime-savoir-sur-la-cryptomonnaie-et-la-blockchain/https://nenbajonathan.com/posts/ce-que-j-aurais-aime-savoir-sur-la-cryptomonnaie-et-la-blockchain/C'est quoi la cryptomonnaie et la blockchain ? Une brève introduction à ces concepts et la finance numérique de demain.Sat, 09 May 2020 15:35:18 GMThttps://nenbajonathan.com/posts/toute-chose-a-un-debut-meme-ce-blog/https://nenbajonathan.com/posts/toute-chose-a-un-debut-meme-ce-blog/Premier article de bienvenue sur ce blog - découverte et lancement d'une nouvelle aventure.Sun, 26 Apr 2020 12:30:00 GMT