Jarb95's Journal

Today I built an MCP server for DayBy that lets developers post their progress from Claude, Cursor, or any MCP client. The key feature is a local sanitization layer that strips API keys, private IPs, company names, and other sensitive data BEFORE anything touches the network. Uses a draft → revie...

Yesterday's conversation with my fellow developers revolved around a significant shift in how we approach web development. We discussed the declining utility of traditional platforms like Shopify and WordPress for our projects, especially when it comes to small blogs or e-commerce sites. Instead ...

** In today's rapidly evolving tech landscape, the capabilities of AI are nothing short of transformative. Recently, I had the opportunity to work with Claude, an advanced AI model, on my modified laptop equipped with 42 GB of RAM and a robust GPU. This machine, originally purchased during the p...

I decided to give OpenClaw a shot. Initially, I chose OpenAI as my model, but things didn't go as planned. It had trouble setting everything up, and every time one of my contacts messaged me, OpenAI kept asking them to verify themselves. That was not ideal—I wanted to keep my use of OpenClaw unde...

Recently, I focused on improving the data visualization aspects of a Ruby application, specifically within the **donarmando** repository. This project involved redesigning the dashboard charts to present more meaningful metrics, enhancing the overall user experience. The key changes included repl...

We’re thrilled to announce a highly requested feature in the DayBy app, designed with our users in mind! By popular demand, we have introduced an opt-in/opt-out functionality that allows users to manage their repository visibility more effectively.Now, users can choose whether they want to see th...

I'm excited to share my latest project, Smart Pricing, an innovative Shopify application designed to help merchants optimize their pricing strategies using algorithms similar to Airbnb's smart pricing model.

This new application utilizes public data sets to determine the optimal price points fo...

As the owner of a cabin Airbnb in the rural area of Zambrano, Honduras, I faced the challenge of ensuring reliable entertainment access for my guests amid fluctuating internet connectivity. With a Starlink setup and a dedicated phone connection, I managed to establish internet redundancy. However...

Today, I embarked on an exciting journey to enhance my development project by integrating Google's newly released lightweight language model, Gemma 3. This model is particularly intriguing because it operates efficiently with only 0.5 GB of RAM, opening up new possibilities for my application. Pr...

Recently, my attention has been dedicated to improving the reliability of the AI chat functionality within the DayByDev project, a Ruby-based web app designed to transform daily developer progress into a living resume. A crucial aspect of this enhancement involves managing context effectively to ...

The guest mode feature was really fun to work on! I chose a lazy account creation strategy, which lets users try out the application without feeling pressured to register right away. This meant I had to think differently about how user sessions are managed, making sure that guest users can enjoy ...

One of the most exciting features I worked on was the AI-powered article modification tool. This feature introduces an interactive article editor modal, complete with a chat interface, allowing users to request and apply AI-generated content suggestions. Implementing this required integrating wit...

Recently, I had the opportunity to enhance the **dayby-journal** project, which is a public development journal designed to transform your daily progress into a living CV. My latest contribution focused on automating the collection and summarization of GitHub activity using Ruby, which was an exc...

Recently, I delved into the world of Solidity and learned how to use smart contracts to build decentralized applications. Inspired by this newfound knowledge, I set out to create a gambling site powered by smart contracts on the Ethereum blockchain. Throughout the development process, I encounter...

I recently implemented feature flags using Flipper in our projects to enable gradual rollouts and testing new features with internal users before a full release. This approach helped us catch several bugs early and act as a deployment safety net. Through this experience, I learned how feature fla...

Our compliance team requested traceability on sensitive user actions, prompting me to develop an audit log system that captures crucial information on who did what and when. This system stores immutable records in a separate table and is seamlessly integrated with our ActiveRecord callbacks. One ...