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Comparison · Infra & APIs

eratosthenes vs RSS-Bridge

A side-by-side editorial comparison of eratosthenes and RSS-Bridge — release velocity, themes, recent moves, and the top alternatives to consider.

eratosthenes vs RSS-Bridge: at a glance

FeatureeratosthenesRSS-Bridge
SectorInfra & APIsInfra & APIs
Velocity score2.50.0
Sparks · 30d00
Top themesarchaeology, bayesian-inference, mcmc, input-validationrss, web-scraping, self-hosted, php
Last editorial update1h ago15d ago
WebsiteVisit →Visit →

What is eratosthenes?

eratosthenes spends 0.1.0 hardening inputs rather than adding chronology methods.

eratosthenes does Bayesian estimation of archaeological chronologies from relative sequences, absolute constraints and artifact assemblages. The 0.0.9 line built out the inference diagnostics — traceplots, histograms, batch-means MCSE reporting, displacement estimation — and then consolidated artifact probability-density estimation into a single gibbs_ad_type(). The 0.1.0 tag turns outward instead, adding validators for every user-supplied structure and replacing seq_check() with a more informative seq_diag().

Read the full eratosthenes trajectory →

What is RSS-Bridge?

The web's duct-tape RSS layer, now quiet for a year after flipping every bridge on by default.

RSS-Bridge generates feeds for sites that removed theirs, and each release is a batch of community fixes to individual bridges plus a handful of new ones. Releases are date-tagged rather than versioned and land every few months, with the most recent in August 2025 — roughly a year of silence since. The core is stable PHP; the churn is in the ~400 site-specific scrapers that break whenever a target site changes markup or adds bot protection.

Read the full RSS-Bridge trajectory →

eratosthenes vs RSS-Bridge: editorial side-by-side

E
eratosthenes
INFRA · APIS
2.5

eratosthenes spends 0.1.0 hardening inputs rather than adding chronology methods.

◆ Current state

eratosthenes does Bayesian estimation of archaeological chronologies from relative sequences, absolute constraints and artifact assemblages. The 0.0.9 line built out the inference diagnostics — traceplots, histograms, batch-means MCSE reporting, displacement estimation — and then consolidated artifact probability-density estimation into a single gibbs_ad_type(). The 0.1.0 tag turns outward instead, adding validators for every user-supplied structure and replacing seq_check() with a more informative seq_diag().

◆ Where it's heading

The package is moving from research code to something a non-author can run. Consolidating estimation behind one function, then wrapping every input class in a validator, are the two steps that make failures legible instead of cryptic, and the diagnostics added earlier serve the same end for the sampler itself. Nothing in the window changes the underlying model; the work is all about making it usable and its output checkable.

◆ Prediction

With inputs validated and diagnostics in place, the next release is more likely to extend the constraint or assemblage modelling than to keep reworking the interface, though the feed's three sparse tags give little to read a cadence from.

R
RSS-Bridge
INFRA · APIS
0.0

The web's duct-tape RSS layer, now quiet for a year after flipping every bridge on by default.

◆ Current state

RSS-Bridge generates feeds for sites that removed theirs, and each release is a batch of community fixes to individual bridges plus a handful of new ones. Releases are date-tagged rather than versioned and land every few months, with the most recent in August 2025 — roughly a year of silence since. The core is stable PHP; the churn is in the ~400 site-specific scrapers that break whenever a target site changes markup or adds bot protection.

◆ Where it's heading

The project has been shifting from a curated tool to a general-purpose scraping surface: bridges are now all enabled by default, caching was rewritten, and token-based URL auth was added to make public instances survivable. That combination points at operators running shared instances rather than individuals running one bridge. The maintenance load, however, is entirely community-carried, and the gap since the last release suggests that pipeline has thinned.

◆ Prediction

The next release is likely another routine batch of bridge repairs and additions rather than a core change. The stated intentions in these notes — raising the minimum PHP version and separating the document root from the data folder — remain unshipped, and nothing here indicates when that lands.

Alternatives to eratosthenes and RSS-Bridge

Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either eratosthenes or RSS-Bridge.

See all eratosthenes alternatives → · See all RSS-Bridge alternatives →

Recent activity from eratosthenes and RSS-Bridge

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 10d agoeratosthenesInput validators added; seq_check() replaced by seq_diag()
  2. 1y agoRSS-BridgeRoutine batch: new bridges plus bot-protection and parser repairs
  3. 1y agoeratosthenesArtifact p.d.f. estimation consolidated into gibbs_ad_type()
  4. 1y agoeratosthenesMCMC diagnostics arrive: traceplots, histograms, batch-means MCSE
  5. 1y agoRSS-BridgeBridge repairs, subcategory support, default 1-day cache TTL
  6. 1y agoRSS-BridgeRe-tag release to correct the version shown in Configuration
  7. 1y agoRSS-BridgeAll bridges now enabled by default
  8. 2y agoRSS-BridgeURL token authentication and cache administration tooling
  9. 2y agoRSS-BridgeCaching system rewritten; all existing cache items expire

Frequently asked questions

What is the difference between eratosthenes and RSS-Bridge?

They serve adjacent needs but don't currently overlap on shipped themes. eratosthenes is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is eratosthenes better than RSS-Bridge?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. eratosthenes is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.

What are the best alternatives to eratosthenes?

Top eratosthenes alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "eratosthenes alternatives" section above for the current picks, or visit /alternatives/eratosthenes for the full list with editorial commentary on each.

What are the best alternatives to RSS-Bridge?

Top RSS-Bridge alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "RSS-Bridge alternatives" section above for the current picks, or visit /alternatives/rss-bridge for the full list with editorial commentary on each.