Source: https://seerepo.com/r/RSSNext/Folo/built
Markdown source: https://seerepo.com/r/RSSNext/Folo/built.md
Description: Folo is a TypeScript repo built with React and Vite. It measures its use with PostHog, watches its errors with Sentry, and uses Firebase.

# What is Folo built with?

Folo is a TypeScript repo built with React and Vite. It measures its use with PostHog, watches its errors with Sentry, and uses Firebase. It has 272,930 written lines, with 255 test files.

Read on October 31, 2026, at commit 70a630a.

Repository: https://github.com/RSSNext/Folo

## Frontend

### The base

- **[React](https://seerepo.com/uses/react)**
- **[Vite](https://seerepo.com/uses/vite)**

## Backend

### Services

- **[Sentry](https://seerepo.com/uses/sentry)**: 3 files · [apps/ssr/client/initialize/helper.ts, line 7](https://github.com/RSSNext/Folo/blob/70a630a62a46de8aed945d7f11812a292df7fab1/apps/ssr/client/initialize/helper.ts#L7)
- **[PostHog](https://seerepo.com/uses/posthog)**: 2 files · [apps/desktop/layer/renderer/src/initialize/analytics.ts, line 10](https://github.com/RSSNext/Folo/blob/70a630a62a46de8aed945d7f11812a292df7fab1/apps/desktop/layer/renderer/src/initialize/analytics.ts#L10)
- **[Firebase](https://seerepo.com/uses/firebase)**: 1 file · [apps/desktop/layer/renderer/src/push-notification.ts, line 4](https://github.com/RSSNext/Folo/blob/70a630a62a46de8aed945d7f11812a292df7fab1/apps/desktop/layer/renderer/src/push-notification.ts#L4)

## Other repos with a similar stack

- [supabase/supabase](https://seerepo.com/r/supabase/supabase/built): React, Vite, Sentry, PostHog · [Compare](https://seerepo.com/compare/RSSNext/Folo/vs/supabase/supabase)
- [tldraw/tldraw](https://seerepo.com/r/tldraw/tldraw/built): React, Vite, Sentry, PostHog · [Compare](https://seerepo.com/compare/RSSNext/Folo/vs/tldraw/tldraw)
- [SigNoz/signoz](https://seerepo.com/r/SigNoz/signoz/built): React, Vite, Sentry, PostHog · [Compare](https://seerepo.com/compare/RSSNext/Folo/vs/SigNoz/signoz)
- [hasura/graphql-engine](https://seerepo.com/r/hasura/graphql-engine/built): React, Vite, Sentry, Firebase · [Compare](https://seerepo.com/compare/hasura/graphql-engine/vs/RSSNext/Folo)
- [trycua/cua](https://seerepo.com/r/trycua/cua/built): React, Vite, Sentry, PostHog · [Compare](https://seerepo.com/compare/RSSNext/Folo/vs/trycua/cua)
- [ente/ente](https://seerepo.com/r/ente/ente/built): React, Vite, Sentry, Firebase · [Compare](https://seerepo.com/compare/ente/ente/vs/RSSNext/Folo)

## Frequently asked questions

### What language is Folo written in?

Folo is written in TypeScript, with 272,930 written lines.

### What framework does Folo use?

Folo is built with React and Vite.

### What services does Folo use?

Folo measures its use with PostHog, watches its errors with Sentry, and uses Firebase.

The proof: [apps/desktop/layer/renderer/src/initialize/analytics.ts, line 10](https://github.com/RSSNext/Folo/blob/70a630a62a46de8aed945d7f11812a292df7fab1/apps/desktop/layer/renderer/src/initialize/analytics.ts#L10)

### Does Folo have tests?

Yes. Folo has 255 test files.

### Which repos have a stack like Folo's?

The ones that share most of its stack: supabase/supabase, tldraw/tldraw, and SigNoz/signoz.

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.