Ever need to just completely clear out an S3 bucket or a DynamoDB table using the AWS SDK? Think it will be one SDK call and then you’re done? Not so! The S3 console has an Empty button for each bucket and the AWS CLI has a aws s3 rm --recursive command. But the console doesn’t lend itself to automation and the CLI command doesn’t work for buckets with object versioning turned on.
Every decade or so, I become fascinated with sorting algorithms and spend some time implementing various approaches in my language of choice. The first time around, it was C++. Last time I took a stab at it, it was C#. This time around, I wanted to implement some popular sorting algorithms in Go. I think I enjoy it so much because sorting is easy to verify and there are so many varied approaches.
In part 1 of the hackathon I participated in at work, I set up the GPT4-x-Alpaca LLM with Oobabooga in an AWS EC2 instance. Next up in my hackathon journey was an attempt to make the LLM do something useful and fun. I’ve been casually interested in creating a Multi-User Dungeon or MUD for short. So for part 2 of the hackathon, I dug into the documentation for Evennia, a Python-based MUD game engine.
Ever since ChatGPT hit the scene, it seems to be all that anyone is talking about. I participated in a hackathon at work last week and was able to spend some time playing around with Large Language Models (LLM for short). Specifically, I was looking for something that could be hosted locally and did not communicate with the internet. ChatGPT is great and really useful, but most companies are not eager to share their private documentation or proprietary code in a public AI chatbot.
Earlier this year, there was finally an opportunity for another hackathon at work and this time I decided to try to build a game in a week. I’ve been working a bit with Godot, the open-source game engine that’s been growing in popularity recently. My experience has been that it’s fantastic for the 2D games that I usually fiddle with and it is also more than capable of handling 3D gamedev.
Go Modules is the official dependency management solution for the Go programming language. Recently, I finally converted over my personal projects. I had been putting it off for some time, since I was waiting for the Go team to finalize everything and work out all the kinks. Go 1.11 was when Modules was first released as a beta. Go 1.12 still had Modules in beta mode and Go 1.13 was when Modules came out of beta.
When I attended AWS re:Invent at the end of 2019, I attended a workshop for using machine learning via Amazon SageMaker to teach an AI how to play blackjack. Seeing as re:Invent was held in Vegas, I decided to take the spirit of Vegas home with me and create my own text-based blackjack game in Go. I added a simple interface so it would be easy to create different AI opponents.
Another late post, but that’s just how it goes. I attended AWS re:Invent with some collegues back in December of 2019 in Las Vegas. The conference spans multiple hotels on the main strip and has something like 70-80k attendees. Since it was my first time attending, I wasn’t really sure what to expect. Turns out, I had a lot of fun! There were lots of opportunities to try out different AWS technologies.
This is waaaay overdue, but we had another hackathon at work back in September of last year and even though I’m waaaay behind on blog posts, I wanted to make sure I did a short writeup on my project. During Gophercon, I received a small Arduino Nano 33 IoT. Not exactly a powerhouse, but I wanted to do something with it. I bought a breadboard, sensors, wires, and other various components.
I recently spent some time figuring out how to gracefully shut down a Go service. The goal was to allow in-flight transactions to complete successfully before shutting down, but return Unavailable for any new requests. I found the solution to be fairly straightforward for Linux, but a little bit more tricky for Windows, specifically when running in a Windows Docker container. General solution for handling termination signals (Linux/Darwin) # For most use cases, the os/signal package works for capturing termination signals:
Another year and another Gophercon, this time in sunny San Diego! As usual, there were a lot of high quality talks across a breadth of subjects. I highly recommend browsing through the Gophercon videos on YouTube, but I’ll highlight what I thought were the interesting bits below. The last year or so has seen a LOT of discussion around dependency management for Go, particularly around dep and Go Modules (formerly vgo).
My brother and I are in the early stages of development and design for a game we are making together. He’s the genius artist and I’m the programmer guy. Everything in-between we share, including map making. There’s an excellent free tool called Tiled that can be used to make 2D maps. It supports layering, automapping, animations, and even collision boundaries. In short, it’s a fantastic tool for creating 2D maps.