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· PropTech.fyi

Welcome to PropTech.fyi — Built with AI, Powered by Elixir

Introducing PropTech.fyi, a curated directory of proptech companies built with Phoenix, Elixir, and a little help from Claude. Here's how we built it and where we're headed.

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Why PropTech.fyi?

The proptech space is exploding. Every week there’s a new company raising a round, launching a product, or reimagining some corner of the real estate industry. But keeping track of it all? That’s a full-time job.

PropTech.fyi was born from a simple need: a clean, searchable directory of proptech companies that’s easy to browse and easy to maintain. No cluttered dashboards, no paywalls — just a focused collection of companies organized by what they do and how they do it.

Built with Claude

Here’s something unusual about this site: it was built almost entirely by AI. The initial codebase — every Phoenix module, every LiveView, every line of CSS — was generated in a single session with Claude, Anthropic’s AI assistant.

This isn’t just a novelty. It’s core to how the site works:

  • Adding companies is fast. Each company is a Markdown file with structured frontmatter. When we discover a new proptech company, we describe it to Claude and get a complete, well-researched profile in seconds.
  • The content is version-controlled. Every company file lives in a Git repository. Changes are tracked, reversible, and transparent.
  • The workflow is AI-native. Instead of building a complex CMS with forms and validations, we lean into the simplicity of Markdown + AI generation. It’s faster and more flexible.

The Industrial Plan Design

We wanted a design that feels grounded and functional — like reading a well-organized technical document. The color system we call Industrial Plan is built around:

  • Green as the primary color — representing growth, sustainability, and innovation. These are the values that drive the best proptech companies, so it made sense as our anchor.
  • Stone neutrals for typography — clean, readable, and unobtrusive. The content should be the focus, not the chrome.
  • Systematic category colors — each proptech “space” (Property Management, Construction Tech, Smart Buildings, etc.) gets a unique, consistent color. This makes scanning the directory intuitive — you start to associate colors with categories at a glance.
  • Hash-based tag colors — tags are assigned colors algorithmically based on their name. This ensures consistency without manual configuration, even as the tag vocabulary grows.

The overall vibe is minimalist with purpose. Every visual element serves a function.

The Tech Stack

Under the hood, PropTech.fyi runs on:

  • Elixir & Phoenix — chosen for reliability, real-time capabilities, and developer happiness. Phoenix LiveView powers the interactive search and filtering without requiring any JavaScript framework.
  • Markdown with YAML frontmatter — each company and blog post is a simple .md file. Structured metadata in the frontmatter enables filtering, sorting, and categorization.
  • Tailwind CSS — utility-first styling that keeps the CSS minimal and maintainable.
  • No database (yet) — all content is loaded from the filesystem at startup. This keeps things simple and portable for now.

What’s Next

This is version 0.1. Here’s what’s on the roadmap:

  1. More companies — we’re actively adding profiles for interesting proptech companies across every sub-sector.
  2. User accounts — so you can save favorites, get notifications on new additions, and eventually contribute profiles.
  3. Commenting — discussion threads on company profiles for community insight.
  4. Newsletter — a weekly digest of new additions and proptech news.
  5. API — programmatic access to the directory data.

Join Us

PropTech.fyi is an evolving project. If you know a company we should feature, or have thoughts on how to make the directory more useful, we want to hear from you.

The future of real estate is being built right now. Let’s keep track of it together.