Data analyst & R programmer building clean financial dashboards, workflows, and technical guides.
I publish tutorials, ebooks, and tools for developers who want simple, efficient analytics systems.
Currently sharing my journey building digital products across TikTok, Substack, and Hashnode.
I’ve been building dashboards and analytics workflows in R for years, and I turned that experience into two technical books. This post explains why I wrote them, what I learned, and how I approach clean data design.
I’m launching a lightweight HTML Dashboard Pack built with pure CSS and vanilla JavaScript. No frameworks, no dependencies — just fast, clean dashboards you can drop into any project. Sharing why I built them, how they work, and what’s included.
Deploying Without Downtime: Blue‑Green, Rolling, and Canary Explained
I just published a practical breakdown of how modern DevOps teams deploy new versions without taking services offline.
If you're building SaaS, APIs, or anything customer‑facing, zero‑downtime deployment is no longer optional.
In this post, I explain the three strategies that keep apps online 24/7:
Blue‑Green (simple + safe)
Rolling Deployments (Kubernetes default)
Canary Releases (best for risky updates)
Clear, beginner‑friendly, and focused on real workflows.
Full article on Substack:
🔗 https://crisdigital.substack