Persona Library
Community-sourced UX research

Who actually uses these products,
and what made them stay.

Deep persona profiles for the tools that run modern work. Community-validated. Exportable. Open for contribution.

10
clerkAPP-200
4 comments

The Clerk Authentication Developer

A full-stack developer at a startup who chose Clerk because building authentication from scratch — login, signup, email verification, OAuth, MFA, session management — is 2 months of work that adds zero product differentiation. They integrate Clerk's pre-built components, customize the flows, and manage users through the dashboard. They appreciate that auth "just works" but they've also hit moments where Clerk's opinionated approach conflicts with their product's specific needs. They are a developer who decided that auth is infrastructure, not a feature worth building themselves.

Aha

The developer is building a new SaaS product.”

cursorAPP-135
4 comments

The Cursor AI-Native Developer

A developer who has made Cursor their primary IDE and restructured their workflow around AI-assisted coding. They don't use AI as autocomplete — they use it as a pair programmer, architect, and refactoring partner. They've learned which prompts work, which context windows matter, and when to trust the AI vs. when to verify manually. They are faster than they were in VS Code, but they've also developed new anxieties about code they didn't fully write.

Aha

The shift was quiet.”

sanityAPP-073
4 comments

The Sanity Developer-Content Team

A developer who chose Sanity for a project that needed a content infrastructure serious enough to model complex relationships and flexible enough to be customized for a non-developer content team. They built the schema. They configured the Studio. They wrote the GROQ queries. The content team uses what they built every day. The developer's relationship with Sanity is: maintenance, evolution, and occasional deep satisfaction when the content model they designed months ago handles a new requirement gracefully.

Aha

Not a single dramatic moment — more like a Tuesday at 3pm when they realized they hadn't thought about schema changes that require migration scripts for existing content — the cost in two weeks.”

replitAPP-067
4 comments

The Replit Non-Traditional Builder

A student, career changer, or self-taught developer who is building real things before they've mastered the full developer toolchain. They use Replit because it removes the setup. There's no local environment to configure, no PATH to fix, no version conflicts. They open a browser, pick a language, and the environment exists. They have learned more by shipping things than by completing tutorials. They have strong momentum. They have significant gaps. This is not a problem — it's a developmental stage.

Aha

It happened mid-workflow — they're building a personal finance tracker.”

makeAPP-048
4 comments

The Make Power Automator

An operations lead, automation specialist, or technical non-developer who moved to Make (formerly Integromat) after hitting the ceiling on Zapier. They know what they wanted to build and Zapier's linear trigger-action model couldn't do it: conditional branches, iterators, error handlers, multi-route flows. Make could. They learned Make. They have built things in Make that non-technical people would describe as software and technical people would describe as creative. They exist in the middle of the developer-to-non-developer spectrum and they've built a practice there.

Aha

A client needs a system: when a new deal is created in HubSpot above a certain value, create a proje.”

contentfulAPP-015
3 comments

The Contentful Content Manager

A content manager, digital editor, or marketing manager at a company with a developer-built Contentful implementation. They publish product pages, blog posts, campaign content, and documentation through Contentful's web interface. They did not design the content model — a developer did. They live inside that model every day and have a detailed understanding of which fields do what and which ones are a mystery. They are not a developer but they've learned to think in content types.

Aha

A teammate asked how they managed publish and update content quickly without waiting on a developer for every change.”

shopifyAPP-118
4 comments

The Shopify App Developer

A developer or small agency building Shopify apps — either custom apps for specific merchants or public apps for the Shopify App Store. They know Liquid well enough to customize themes and the Admin API well enough to build features merchants ask for. They spend equal time writing code and reading Shopify's changelog to see what broke or changed. They've been through at least one major API version migration and still have scars.

Aha

Not a single dramatic moment — more like a Tuesday at 3pm when they realized they hadn't thought about aPI versioning deadlines that force migration work on their timeline, not the developer's in two weeks.”

flyioAPP-154
4 comments

The Fly.io Edge Deployer

A backend developer or DevOps engineer who deploys applications on Fly.io because they need their app running close to users globally — not just served from a CDN, but actually computing at the edge. They've outgrown Heroku's simplicity, don't want AWS's complexity, and find Vercel too opinionated for non-Next.js workloads. Fly.io hits the sweet spot: Docker containers deployed globally with a CLI that feels developer-first. They're comfortable with infrastructure but don't want it to be their full-time job.

Aha

Not a single dramatic moment — more like a Tuesday at 3pm when they realized they hadn't thought about stateful workloads at the edge (databases, volumes) have limitations that aren't always clear until production in two weeks.”

harvestAPP-165
4 comments

The Harvest Freelance Time Tracker

A freelance designer, developer, consultant, or small agency owner who bills by the hour and uses Harvest to track every minute. They know that untracked time is unpaid time, and unpaid time is a silent business killer. They start timers when they begin work, stop them when they break, and review their timesheets weekly to make sure nothing slipped. They've built a system that balances accurate tracking with not letting the tool interrupt their flow. They are both the worker and the business.

Aha

A freelance developer juggles three active clients.”

splineAPP-101
3 comments

The Spline Web 3D Designer

A product designer, visual designer, or creative developer who started using Spline because they wanted 3D on their website or product and Blender was too much. They have a 2D design background — Figma is their native language. Spline felt like Figma with a Z-axis. They've built at least one thing they're proud of: a 3D hero section, an interactive product visualization, a floating element that reacts to cursor position. They use it for client work and personal projects. They consider themselves an early adopter of the idea that 3D should be accessible to product designers, not just motion designers.

Aha

They're redesigning a SaaS product's marketing homepage.”

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