L1centrality
A graph-centrality package that spent 2026 making its existing measures usable at scale, then went quiet.
Comparison · Infra & APIs
eratosthenes vs Headlamp
A side-by-side editorial comparison of eratosthenes and Headlamp — release velocity, themes, recent moves, and the top alternatives to consider.
eratosthenes vs Headlamp: at a glance
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().
What is Headlamp?
Headlamp's feed is mostly chart bumps; the plugin toolchain is where the actual work shows.
Most of what reaches this feed are Helm chart releases carrying a one-line project description and no changelog, roughly one every six weeks. The one entry with substance is headlamp-plugin 0.14.0, the tooling plugin authors use: a Windows shim fix, execSync replaced with execFileSync to remove a shell-injection path, missing type declarations added for theme customisation, and a long list of dependency security fixes.
eratosthenes vs Headlamp: editorial side-by-side
eratosthenes
2.5INFRA · APIS
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.
Headlamp
2.5INFRA · APIS
Headlamp's feed is mostly chart bumps; the plugin toolchain is where the actual work shows.
◆ Current state
Most of what reaches this feed are Helm chart releases carrying a one-line project description and no changelog, roughly one every six weeks. The one entry with substance is headlamp-plugin 0.14.0, the tooling plugin authors use: a Windows shim fix, execSync replaced with execFileSync to remove a shell-injection path, missing type declarations added for theme customisation, and a long list of dependency security fixes.
◆ Where it's heading
Headlamp's investment is visibly in the extension surface rather than the core UI — the plugin tool is where typing, linting and security posture are being tightened. The 0.14.0 scaffolding change is the notable signal: new plugins now generate an AGENTS.md and bundle example plugins so coding agents have context when working in a plugin repository. Chart releases will keep dominating the feed and telling you nothing.
◆ Prediction
Further plugin-tool releases focused on type coverage and authoring ergonomics are the likely next visible work; the chart cadence should continue unchanged.
Alternatives to eratosthenes and Headlamp
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 Headlamp.
exametrika
A test-theory package that grew into a graphical-model toolkit, now spending its releases paying down the API debt that growth created.
nuggets
nuggets keeps compounding on the 2.0 rewrite — more pattern families, lighter install.
projoint
projoint spent a year on CRAN paperwork, then shipped a correctness fix it flagged itself.
dqcheckr
dqcheckr adds drift analysis, then removes the YAML a user had to hand-write.
lifecontingencies
An actuarial mainstay spends its releases on CI plumbing, not on new mathematics.
See all eratosthenes alternatives → · See all Headlamp alternatives →
Recent activity from eratosthenes and Headlamp
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 10d agoeratosthenesInput validators added; seq_check() replaced by seq_diag()
- 21d agoHeadlampheadlamp-helm-0.44.0
- 2mo agoHeadlampheadlamp-helm-0.43.0
- 3mo agoHeadlampheadlamp-plugin 0.14.0
- 3mo agoHeadlampheadlamp-helm-0.42.0
- 4mo agoHeadlampheadlamp-helm-0.41.0
- 5mo agoHeadlampheadlamp-helm-0.40.1
- 1y agoeratosthenesArtifact p.d.f. estimation consolidated into gibbs_ad_type()
- 1y agoeratosthenesMCMC diagnostics arrive: traceplots, histograms, batch-means MCSE
Frequently asked questions
What is the difference between eratosthenes and Headlamp?
They serve adjacent needs but don't currently overlap on shipped themes. eratosthenes and Headlamp are shipping at a similar cadence (velocity 2.5 vs 2.5, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is eratosthenes better than Headlamp?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. eratosthenes and Headlamp are shipping at a similar cadence (velocity 2.5 vs 2.5, both within Sparkpulse's "active" band). 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 Headlamp?
Top Headlamp alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Headlamp alternatives" section above for the current picks, or visit /alternatives/headlamp for the full list with editorial commentary on each.