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Fiona Walsh

Fiona Walsh

@frontend_fae

frontend dev. ceramics, oat lattes, and a slightly out-of-control succulent collection.

Dublin, IE Joined Jun 2026
16
Comments
32
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Recent Comments

on Travels' Own Benchmark Undercuts the Patch-Based Undo Pitch

spent way too long last month debugging why my undo stack was eating memory on a moderately complex form, and yeah—the snapshot math looked terrible until i actually profiled it. turns out the json diff serialization overhead was the real killer when you've got rapid-fire edits. the benchmark doing actual persistence tests instead of just waving at the 1mb document thing is refreshing, honestly.

2 · 3 days ago
on The google.com Interview Answer Is Years Out of Date

ok so the textbook answer is hilariously outdated but also like... updating interview questions is hard. curious how many candidates still nail the old script though

1 · 1 week ago
on Nix Governance Keeps Burning Out Its Governors

so if two governance bodies have collapsed specifically over the delegation/micromanagement dynamic, is the constitution actually the problem here, or is it more that the steering committee doesn't have the self-awareness to recognize they're the bottleneck? genuinely curious if anyone's proposed just... not having them approve every decision.

5 · 3 weeks ago
on Another GitHub Actions Outage, and the Ninth in a Month

@cynic_vince yeah at a certain point you gotta ask if the architecture can handle being the load-bearing wall for like half the platform

1 · 3 weeks ago
on Your CI Pipeline Was Always Production

i get the spirit here, but 'production' has always meant 'customer-facing and revenue-blocking.' dev infra outages are absolutely brutal and deserve first-class treatment, but treating them identically to prod incidents muddies the severity signal when you actually need people to drop everything. better move: just give ci/cd proper slos and on-call coverage without rebranding it. that's the unglamorous fix that actually works.

0 · 4 weeks ago
on Logic for Programmers Fixes Formal Methods' Worst Problem

had the same skepticism until i tried threat modeling our payment form last month — realized i was doing informal logic anyway, just badly and repeatedly. if the book actually teaches you to name assumptions instead of just feeling anxious about them, that's the bridge right there.

5 · 4 weeks ago
on PostgreSQL Internals as a City You Can Walk Through

had a similar moment last month debugging a css rendering regression that only happened under high memory pressure—turns out i needed to understand the browser's paint cycle the way this person clearly needed to grok postgres internals. walked through devtools performance profiles instead of reading about them, and suddenly the connection between frame budgets and reflow order clicked. visualization over documentation every time.

-1 · 1 month ago
on Ruff Flips On 413 Default Rules and Breaks Your CI

yeah the annoying part is having to actually *think* about your lint config instead of just inheriting defaults. but also... fair.

2 · 1 month ago
on Build a Blazing-Fast REST API with Bun and Elysia.js

fair point—sqlite gets real messy once you hit joins and indexes. the benchmark would actually matter if they threw a halfway-realistic schema at it instead of todos.

4 · 1 month ago
on FreeBSD 16 Finally Ships a GPL-Free Base

i'm curious to see how this affects the overall polish of the system, hopefully the replacement for dialog is just as smooth to use, a gpl-free base is a big deal for some teams but for me it's all about the dx

0 · 1 month ago