--- title: "#open articles | Hashnode" description: "open. Read the latest #open articles and tutorials on Hashnode." url: "https://hashnode.com/tag/open" --- Tag # #open 45 posts · 3 followers [Shreyansh Builds](https://hashnode.com/@shreyanshbuilds) · [Oct 15](https://hashnode.com/posts/i-used-to-think-software-testing-was-unnecessary-then-i-started-building-my-own-project/6ad10a3c36d472c0b62e8db7) ### [I Used to Think Software Testing Was Unnecessary. Then I Started Building My Own Project.](https://thelastdeploy.hashnode.dev/i-used-to-think-software-testing-was-unnecessary-then-i-started-building-my-own-project?utm_source=hashnode&utm_medium=feed) Learn why software testing matters as an open-source project, from unit and integration tests to E2E testing and preventing regressions in production. 6 min read · [thelastdeploy.hashnode.dev](https://thelastdeploy.hashnode.dev/i-used-to-think-software-testing-was-unnecessary-then-i-started-building-my-own-project?utm_source=hashnode&utm_medium=feed) [Chris F A](https://hashnode.com/@chrisf) · [Aug 27](https://hashnode.com/posts/self-hosting-supabase-locally-why-1-626-mb-of-docker-ram-is-killing-your-dev-loop/6a901a59bfd9e533ef94116f) ### [Self-Hosting Supabase Locally: Why 1,626 MB of Docker RAM Is Killing Your Dev Loop](https://applighter.hashnode.dev/self-hosting-supabase-locally-why-1-626-mb-of-docker-ram-is-killing-your-dev-loop?utm_source=hashnode&utm_medium=feed) What the official local stack actually costs in memory, where every megabyte goes, and a protocol to measure it yourself in five minutes. 7 min read · [applighter.hashnode.dev](https://applighter.hashnode.dev/self-hosting-supabase-locally-why-1-626-mb-of-docker-ram-is-killing-your-dev-loop?utm_source=hashnode&utm_medium=feed) [Jordan Bourbonnais](https://hashnode.com/@clawpulse) · [Apr 20](https://hashnode.com/posts/a-practical-guide-to-building-your-own-open-source-llm-monitoring-stack-as-a-helicone-alternative-1/69e60070ebb1d0bb6e08448c) ### [A Practical Guide to Building Your Own Open Source LLM Monitoring Stack as a Helicone Alternative](https://clawpulse.hashnode.dev/a-practical-guide-to-building-your-own-open-source-llm-monitoring-stack-as-a-helicone-alternative-1?utm_source=hashnode&utm_medium=feed) What you'll learn How to architect a lightweight, self-hosted LLM monitoring solution without vendor lock-in Why open source alternatives give you better control over sensitive AI agent data Step-by-step implementation of a cost-effective monitoring... 3 min read · [clawpulse.hashnode.dev](https://clawpulse.hashnode.dev/a-practical-guide-to-building-your-own-open-source-llm-monitoring-stack-as-a-helicone-alternative-1?utm_source=hashnode&utm_medium=feed) [Jordan Bourbonnais](https://hashnode.com/@clawpulse) · [Apr 13](https://hashnode.com/posts/a-practical-guide-to-building-your-own-open-source-llm-monitoring-stack-as-a-helicone-alternative/69dcc62ac440865b65f9a710) ### [A Practical Guide to Building Your Own Open Source LLM Monitoring Stack as a Helicone Alternative](https://clawpulse.hashnode.dev/a-practical-guide-to-building-your-own-open-source-llm-monitoring-stack-as-a-helicone-alternative?utm_source=hashnode&utm_medium=feed) What you'll learn: How to architect a lightweight, self-hosted monitoring solution for LLM applications without vendor lock-in Why open source alternatives give you better control over sensitive LLM data and cost predictability Step-by-step implemen... 3 min read · [clawpulse.hashnode.dev](https://clawpulse.hashnode.dev/a-practical-guide-to-building-your-own-open-source-llm-monitoring-stack-as-a-helicone-alternative?utm_source=hashnode&utm_medium=feed) [Akash Bijwe](https://hashnode.com/@akashbijwe) · [Jan 22](https://hashnode.com/posts/open-graph-meta-generator-because-your-links-should-look-gorgeous-everywhere/6971c6ff0365322742e29fdd) ### [Open Graph Meta Generator — Because Your Links Should Look Gorgeous Everywhere 🌐✨](https://devutilx.hashnode.dev/open-graph-meta-generator-because-your-links-should-look-gorgeous-everywhere?utm_source=hashnode&utm_medium=feed) Open Graph Meta Generator from DevUtilX — to help you create perfect Open Graph meta tags instantly, so your URLs look stunning when shared on ... 3 min read · [devutilx.hashnode.dev](https://devutilx.hashnode.dev/open-graph-meta-generator-because-your-links-should-look-gorgeous-everywhere?utm_source=hashnode&utm_medium=feed) [Jeevani Singireddy](https://hashnode.com/@JeevaniSingireddy) · [May 16, 2025](https://hashnode.com/posts/open-banking-and-its-impact-on-consumer-financial-services/6826d6f63c1f69750afd3891) ### [Open Banking and Its Impact on Consumer Financial Services](https://jeevanisingreddy.hashnode.dev/open-banking-and-its-impact-on-consumer-financial-services?utm_source=hashnode&utm_medium=feed) Open Banking represents a transformative shift in the financial services landscape, enabling consumers to securely share their financial data with third-party providers (TPPs) through application programming interfaces (APIs). Driven by regulatory in... 4 min read · [jeevanisingreddy.hashnode.dev](https://jeevanisingreddy.hashnode.dev/open-banking-and-its-impact-on-consumer-financial-services?utm_source=hashnode&utm_medium=feed)