Here’s what I’ve built with Fable on Wed-Sat before running out of quota. Including output token for comparison:
8-bit sfruby.com redesign. A Super Mario-style rebuild of the site, on the creative direction and new logo from our designer Anton Lovchikov. Plus a design-system update. It went surprisingly well and all steering I did were fun things like adding a game, or adding pythons 🐍 to the game. 1.7M output tokens.
Live collaboration for our Fizzy fork. Notion / Google Docs-style multiplayer on our fork of Fizzy, wired up with Y.js, yrby and AnyCable. This was A LOT easier than I expected - mostly thanks to JP Camara’s previous work on exactly that. We tested it at Evil Martians All Hands on Thursday morning with about 40 people editing the same card, and it went smoothly. I think we inspired Martians a bit! 1.6M output tokens.
Benchmarking retrospective. I had Fable analyze all my WebSockets and AnyCable benchmarking work and it built skills and a harness to make the next rounds faster/easier. This work was genuinely hard, and I wrote about it on the Martian Chronicles. Did Fable really save my future
assself? Remains to be seen. 600K output tokens.Slidev Martian theme. A presentation theme for internal use at Evil Martians: our colors and fonts, light/dark theme switcher, animations, and our dynamic Martian progress bar. Super autonomous and the result was just what I wanted. 600K output tokens. 600K output tokens.
Layered-rails refactor for Solaris, our internal company operating system. This felt similar to previous rounds of refactoring with Opus, hard to tell if it was somehow better. 260K
Continued work on Devtools PMF cookbook. Not launched yet. We did more research, some reporting, but no surprises here. 200K
And that is how the “50% on Fable” weekly quota ran out.
Just how much better was it? I’m not sure.
Because of that I’m now running a test: asking Fable and Opus in separated cloned environments to build the realtime collaboration feature for Fizzy from scratch.
Luckily the agents don’t have to research a lot, cause I already knew about the latest work on realtime collaboration on Rails. How? JP Camara presented it at our SF Ruby Conference last year. I’ve definitely learnt from it. And we’re running it again this November - that’s why the website update!
The test is running, so the topic is to be continued.
But, what have you built, my developer friend?