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projoint vs RSS-Bridge

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

projoint vs RSS-Bridge: at a glance

FeatureprojointRSS-Bridge
SectorInfra & APIsInfra & APIs
Velocity score2.50.0
Sparks · 30d00
Top themesconjoint-analysis, survey-research, qualtrics, cranrss, web-scraping, self-hosted, php
Last editorial update1h ago15d ago
WebsiteVisit →Visit →

What is projoint?

projoint spent a year on CRAN paperwork, then shipped a correctness fix it flagged itself.

projoint is an R package for analysing conjoint survey experiments, covering Qualtrics import, reshaping, and quantity-of-interest estimation with inter-rater reliability correction. Most of its release history is CRAN admission work — citation formats, DESCRIPTION fields, \value{} tags, vignette cleanups — with four tags backfilled within ninety seconds of each other on 15 July in non-monotonic version order, so neither tag order nor timestamps in this feed track the real sequence. The substantive releases are the ones fixing data-preparation bugs that silently corrupt estimates.

Read the full projoint 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 →

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

P
projoint
INFRA · APIS
2.5

projoint spent a year on CRAN paperwork, then shipped a correctness fix it flagged itself.

◆ Current state

projoint is an R package for analysing conjoint survey experiments, covering Qualtrics import, reshaping, and quantity-of-interest estimation with inter-rater reliability correction. Most of its release history is CRAN admission work — citation formats, DESCRIPTION fields, \value{} tags, vignette cleanups — with four tags backfilled within ninety seconds of each other on 15 July in non-monotonic version order, so neither tag order nor timestamps in this feed track the real sequence. The substantive releases are the ones fixing data-preparation bugs that silently corrupt estimates.

◆ Where it's heading

The maintainer is hardening the path from raw Qualtrics export to estimate, which is where conjoint analysis quietly goes wrong. Three separate releases fix that path: dropped respondent-level weights in organize_data(), repeated-task reshaping in reshape_projoint(), and choice-to-profile mapping in 1.1.3. Each fix now arrives with regression tests and stricter validation rather than just a patch, and 1.1.3 adds an explicit .choice_map so the mapping is auditable instead of inferred.

◆ Prediction

Expect the validation-and-regression-test pattern to keep extending across the import path, with releases continuing to arrive in bursts around CRAN submission rather than on a cadence.

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 projoint 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 projoint or RSS-Bridge.

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

Recent activity from projoint and RSS-Bridge

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

  1. 17d agoprojointExplicit .choice_map guards choice-to-profile mapping
  2. 1mo agoprojointCRAN submission housekeeping for DESCRIPTION and examples
  3. 1mo agoprojointCRAN formatting pass; minor make_projoint_data() fix
  4. 1mo agoprojointreshape_projoint() repeated-task bug fixed; validation tightened
  5. 1mo agoprojointCitation metadata updated with the CRAN DOI
  6. 5mo agoprojointorganize_data() no longer drops respondent-level weights
  7. 1y agoRSS-BridgeRoutine batch: new bridges plus bot-protection and parser repairs
  8. 1y agoRSS-BridgeBridge repairs, subcategory support, default 1-day cache TTL
  9. 1y agoRSS-BridgeRe-tag release to correct the version shown in Configuration
  10. 1y agoRSS-BridgeAll bridges now enabled by default
  11. 2y agoRSS-BridgeURL token authentication and cache administration tooling
  12. 2y agoRSS-BridgeCaching system rewritten; all existing cache items expire

Frequently asked questions

What is the difference between projoint and RSS-Bridge?

They serve adjacent needs but don't currently overlap on shipped themes. projoint 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 projoint better than RSS-Bridge?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. projoint 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 projoint?

Top projoint alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "projoint alternatives" section above for the current picks, or visit /alternatives/projoint 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.