At work, nearly all of my code is written by AI. I still believe the practice of Software Engineering is as important as ever, perhaps even more so. Also, scope increases when using AI tools. I find myself simultaneously building my systems and building AI tooling that builds my systems.
Bill Bruschi
@williambruschi.net
Software developer and problem solver with over 15 years of professional experience. Hacking and coding since I was a kid. 💼: Currently work @ HubSpot 🔗 https://www.linkedin.com/in/bill-bruschi-8ba18613/
AI tools I've been using the most, both at work and personally: 1. agent-shell - As an Emacs user, really like having all the Emacs commands available while interacting with Agents. Easy to extend. 2. Claude Code 3. Opencode - Using this more and more, especially with other models.
Finally wrapped up Advent of Code 2025 over the weekend. Practically all my code at work is AI generated nowadays, so it was nice to get some hands on coding in for a change. I did use AI for the not so fun parts: scaffolding files and documentation.
I just completed all 12 days of Advent of Code 2025! #AdventOfCode adventofcode.com #CommonLisp github.com/brewski82/ad...
Advent of Code 2025
adventofcode.com
I just completed "Reactor" - Day 11 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/11 #CommonLisp github.com/brewski82/ad...
Day 11 - Advent of Code 2025
adventofcode.com
I've completed "Factory" - Day 10 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/10 #CommonLisp github.com/brewski82/ad...
Day 10 - Advent of Code 2025
adventofcode.com
I've completed "Movie Theater" - Day 9 - Advent of Code 2025 #AdventOfCode #CommonLisp adventofcode.com/2025/day/9 github.com/brewski82/ad...
Day 9 - Advent of Code 2025
adventofcode.com
I've completed "Playground" - Day 8 - Advent of Code 2025 #AdventOfCode #CommonLisp adventofcode.com/2025/day/8 github.com/brewski82/ad...
Day 8 - Advent of Code 2025
adventofcode.com
I've completed "Laboratories" - Day 7 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/7 github.com/brewski82/ad... #CommonLisp
Day 7 - Advent of Code 2025
adventofcode.com
I just completed "Trash Compactor" - Day 6 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/6
Day 6 - Advent of Code 2025
adventofcode.com
For emacs claude code integration, currently using github.com/stevemolitor... and have been very pleased. Also want to try github.com/xenodium/age... at some point.
I've been toying with my opinionated Emacs package containing tools for working with Claude Code. github.com/brewski82/cl...
GitHub - brewski82/claude-code-tools.el: A robust Emacs integration for Claude Code that supports multiple concurrent sessions, Magit integration, and git worktree workflows.
A robust Emacs integration for Claude Code that supports multiple concurrent sessions, Magit integration, and git worktree workflows. - brewski82/claude-code-tools.el
github.com
I've been really enjoying this free ebook about functional programming: github.com/MostlyAdequa... .
GitHub - MostlyAdequate/mostly-adequate-guide: Mostly adequate guide to FP (in javascript)
Mostly adequate guide to FP (in javascript). Contribute to MostlyAdequate/mostly-adequate-guide development by creating an account on GitHub.
github.com
Seems like I'm using a new AI coding tool every week. This week, it has been claude-code along with the claude-code.el emacs package. docs.anthropic.com/en/docs/agen... github.com/stevemolitor...
Claude Code overview - Anthropic
Learn about Claude Code, an agentic coding tool made by Anthropic. Currently in beta as a research preview.
docs.anthropic.com
So far, the AI coding assistants I've tried in earnest are GitHub Copilot, Cursor, and Aider. I think Cursor is the best in terms of usability. But I'm rooting for Aider because: 1. It's terminal-based and not tied to an editor. 2. It's open source. aider.chat
Home
aider is AI pair programming in your terminal
aider.chat
Currently reading the computer science paper Out of the Tar Pit. Quite the gem! curtclifton.net/papers/Mosel...
curtclifton.net
Just finished listening to The Pragmatic Engineer's podcast episode with Grady Booch - highly recommended! Hearing him talk about the history of software and his enthusiasm about the future of the industry lifted my spirits. It's great to see such passion from industry pioneers!
Why are migrations so darn hard - and why are they not getting easier, over time? Here's IBM Fellow @gradybooch.bsky.social sharing his grounded take in the latest The Pragmatic Engineer Podcast episode (that is full of insightful gems like this): newsletter.pragmaticengineer.com/p/software-a...
I've completed "Resonant Collinearity" - Day 8 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/8 My solution in #CommonLisp: github.com/brewski82/ad...
Day 8 - Advent of Code 2024
adventofcode.com
My #CommonLisp solution: github.com/brewski82/ad... I just completed "Bridge Repair" - Day 7 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/7
Day 7 - Advent of Code 2024
adventofcode.com
Another #CommonLisp solution: github.com/brewski82/ad... I've completed "Guard Gallivant" - Day 6 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/6
Day 6 - Advent of Code 2024
adventofcode.com
Another solution in #CommonLisp . Ran into a little trouble as the rules contained a circular dependency 😵💫 github.com/brewski82/ad... I've completed "Print Queue" - Day 5 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/5
Day 5 - Advent of Code 2024
adventofcode.com
I've completed "Ceres Search" - Day 4 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/4 In #CommonLisp github.com/brewski82/ad...
Day 4 - Advent of Code 2024
adventofcode.com
#CommonLisp solution using regexes: github.com/brewski82/ad... I've completed "Mull It Over" - Day 3 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/3
Day 3 - Advent of Code 2024
adventofcode.com
Horribly inefficient solution to part B in #CommonLisp 😀 I just completed "Red-Nosed Reports" - Day 2 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/2
Day 2 - Advent of Code 2024
adventofcode.com
I just completed "Historian Hysteria" - Day 1 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/1 Using #CommonLisp. Could be the only question I get to this year 😀
Day 1 - Advent of Code 2024
adventofcode.com
I've been really enjoying the Emacs LLM client gptel. It's both unobtrusive and ubiquitous. github.com/karthink/gptel
GitHub - karthink/gptel: A simple LLM client for Emacs
A simple LLM client for Emacs. Contribute to karthink/gptel development by creating an account on GitHub.
github.com
Great article on designing a concurrent hast table, explaining tradeoffs made for target performance characteristics. 📝 ibraheem.ca/posts/design...
Designing A Fast Concurrent Hash Table
I recently released papaya, a fast and feature-complete concurrent hash table for Rust. In this post I want to dive into the design and research that went into creating it, as well as why you might co...
ibraheem.ca
Java 21 introduced Virtual Threads. Do these make batch APIs obsolete in terms of maximizing throughput?
At AWS, I worked on projects using various languages: mostly Java, but also Typescript, Python, and Ruby. Small, autonomous teams meant leads "chose the right language" for each problem.