Oludele Halleluyah@hallelx2

AI Engineer | Medical Doctor in a Year's time | Future Nobel Prize Winner

 Nigeria
portfolio.hallelx2.com
Joined April 2023
168 Photos and videos
In this article, I explore what matters for your backend apps. I load tested an API endpoint (orders and checkout) implemented in multiple frameworks from 3 languages and checked the performance. More of what went down in the article. Enjoy
Article

Does choice of language or framework matter for your backend? Here Is the Half That Still Does

We have never had one language, and the reason is not that programmers enjoy arguing, although we do. It is that a language is a set of promises about what happens at runtime, and different problems

3
1
6
444
I started building a vectorless RAG engine in Go some months back and wanted coordinate-based citations. No Go library could do it, so I built one: github.com/halllelx2/pdfgrab. It's still the best PDF structure library in Go, and I have proof Leave a star.
Article

Citation Needs Coordinates — Why I Wrote a PDF Engine in Go

A pure-Go PDF structure engine that exists because the retrieval engine above it had to point at the pixels an answer came from, plus the ICDAR benchmarks, the metric I got wrong for months, and the

6
13
643
Here, I make a case for why obsessing over the choice of programming language might be the wrong move for the wrong reasons in 2026. Does this really matter anymore? If not, what matters in this age of AI? Explore the read and lmk your thoughts.
Article

What Matters then?

I want to make a claim that will annoy a lot of people, so I am going to earn it first, because said flatly it sounds like a shrug and every experienced engineer will reject it on sight. The claim is

1
1
6
1,075
Here I make a case for why I think an MCP server connected to your own personal agent like hermes or claude, beats an admin dashboard. With this, you can control your admin operations with natural language. I believe this is the future.
Article

Your Admin Workflow Needs an MCP Server, Not Another Dashboard

If you build things on your own, you already know the shape of this. You are running more processes than one person should be running. A job queue here, orders coming in there, a couple of scheduled

14
1
11
1,583
I have been using T3Code by @theo since it came out in April and it has been a game changer In this article, I make a case for why I think it is the future of harnesses and the issues faced by the harness world before T3Code came into the scene.
Article

T3 Code Is the Future of Harnesses

Most people who write code with AI now have more than one of these tools available to them, and almost nobody has stopped to ask why they are personally doing the routing between them. Because that is

5
5
917
I have been sitting on this for a while. Cloudflare is something i feel more people should know about. @Cloudflare So in this post, I make a case for why cloudflare might be what you need for your business. Walk with me.
Article

Sometimes, Cloudflare Is All You Need

In 2017 a few researchers argued that attention is all you need. They meant transformers. I'm stealing the sentence. In software, attention is the only currency you actually spend. Money? you can

3
1
7
1,774
3 months ago, I decided to learn Java. I did not do it conventionally, I did it by building a project that has been on my mind for a while now I can safely call myself a Java developer now... lol
Article

Mercala — A Store You Run by Talking to It

It is 2026 and every platform is going agentic, ecommerce included. Shopify shipped an admin assistant on all plans and an MCP server to go with it. I had wanted to build an agentic store for a while,

14
29
3,911
I did a migration of my TG bot from AWS EC2 to a Contabo instance. I made detailed measurement of how that affected the delivery of services and an issue I didn't plan for. Hope it's helpful...
Article

How I Moved a Live Telegram Bot Off AWS in Six Seconds — And Lost Fifteen Minutes to a Firewall Rule

The bot was down for about six seconds. A student answering questions at three in the morning saw a 78-second gap, against her own median of 69. Here is what made that cheap, and the mistake that cost

2
6
1,104
I wrote a blog on how I used a Chrome extension and a @Cloudflare Worker (yes, another one) to build a tunneling solution where your browser does the forwarding. No ngrok or CLI and it costs $0/month to run. Plus the Chrome rule that nearly killed it.
Article

Your Browser Is the Tunnel

How a LangSmith tracing quirk became BridgeHook — a webhook tunnel built on a Cloudflare Worker, two Durable Objects, a Chrome extension and a Neon database — and what Chrome's security rulebook did

2
2
13
1,596
Following my other post on how I implemented a payment in my telegram bot with @bachs_hq and a cloudflare worker, this is an article on what I have done so far to bring money in. This is based on real analytics from the app soo far. benefits of data 😁
Article

How I Marketed a Free Study Bot From Inside Its Own Code

Four dated changes to how it asks for support, what the database says each one was worth, and the conversion rate I nearly published that was two small numbers standing next to each other. Some hours

3
6
1,002
Here I wrote an article of how I used @bachs_hq and a cloudflare worker to handle support payment inside the telegram bot i created for exam preparation in this case. Check it out.
Article

How I Used Bachs + a Cloudflare Worker to Orchestrate a Payment Gateway in My Telegram Bot

A checkout session dies in an hour and a chat message lives forever. That mismatch is the whole story: why the gateway moved out of the bot, how the Worker is secured, and the hole I found in my own

4
6
35
2,961
Load more