# filamentgroup/Southstreet

Filament Group's core tools & workflow for delivering rich cross-device web applications

Repository: https://github.com/filamentgroup/Southstreet
Canonical: https://ross.abutalabs.com/products/southstreet
Language: JavaScript
License: MIT
License Family: permissive
Archived: true
Last push: 2022-08-31T14:13:00+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5246, "days_push": 1463, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1077, forks 51 (observed 2026-08-28T04:03:29.660926+00:00)

## What it is
SouthStreet is Filament Group's collection of front-end tools and workflow for building fast, accessible cross-device web applications using progressive enhancement. It aggregates tools like Enhance, loadCSS, loadJS, CriticalCSS, Grunticon, AjaxInclude, and Picturefill into a cohesive delivery process.

## Use cases
- deliver web pages that render fast on any device
- load CSS and JS asynchronously
- extract critical CSS for above-the-fold rendering
- serve SVG icons with fallbacks for older browsers
- build responsive images with a polyfill
- apply progressive enhancement to detect browser capabilities

## When to choose
- you maintain a legacy project already built on Filament Group's progressive enhancement workflow
- you need reference implementations of async CSS/JS loading or critical CSS extraction patterns

## When to avoid
- starting a new modern front-end project, since the repository is archived and unmaintained
- you need actively supported tooling - modern bundlers and native browser features have superseded these techniques

## Facets
- artifact type: framework
- maturity: abandoned
- function: web-framework, developer-tools, build-tool, templating
- domain: web-development, frontend, performance
- platform: browser, cli
- tags: progressive-enhancement, critical-css, responsive-images, asset-loading, cross-device, archived, web-server, nodejs

## Member repositories
- filamentgroup/Southstreet (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:29.660926+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:53:14.918386+00:00, confidence not recorded.
  - readme: https://github.com/filamentgroup/Southstreet (fetched 2026-08-28T04:03:29.660926+00:00, sha 4ca777ae7dc1)
- Data as of 2026-08-30T08:39:29.467469+00:00.