accessr
One R Markdown source, four accessible formats — and a fortnight spent patching around someone else's bug.
Comparison · Infra & APIs
Cloudflare Tunnel vs SLmetrics
A side-by-side editorial comparison of Cloudflare Tunnel and SLmetrics — release velocity, themes, recent moves, and the top alternatives to consider.
Cloudflare Tunnel vs SLmetrics: at a glance
What is Cloudflare Tunnel?
cloudflared's release feed is checksums and nothing else — until a release has to warn you off itself.
The tunnel daemon ships on a calendar-versioned cadence, roughly two to four releases a month. Nine of the last ten release bodies contain only SHA256 checksums for the packaged binaries across amd64, arm64, 386, arm, FIPS Linux and the macOS and Debian/RPM packages; no changelog text accompanies them. Whatever changed in a given version is not discoverable from this feed.
What is SLmetrics?
A young ML metrics package rewrote its own backend twice in six months chasing speed.
SLmetrics provides supervised learning evaluation metrics for R — confusion matrices, classification and regression measures, ROC and precision-recall curves — with the computation pushed into C++. After a series of pre-releases it now runs on an Armadillo backend, supports OpenMP parallelism and LAPACK/BLAS, and reports 5-20x speedups over its earlier implementations. The API has been reshaped for extensibility, with an estimator argument replacing the fixed aggregation options.
Cloudflare Tunnel vs SLmetrics: editorial side-by-side
Cloudflare Tunnel
5.0INFRA · APIS
cloudflared's release feed is checksums and nothing else — until a release has to warn you off itself.
◆ Current state
The tunnel daemon ships on a calendar-versioned cadence, roughly two to four releases a month. Nine of the last ten release bodies contain only SHA256 checksums for the packaged binaries across amd64, arm64, 386, arm, FIPS Linux and the macOS and Debian/RPM packages; no changelog text accompanies them. Whatever changed in a given version is not discoverable from this feed.
◆ Where it's heading
The publishing pattern is stable and unlikely to change: release notes live elsewhere, and the feed functions as a distribution manifest. The one exception in this window is instructive — 2026.8.0 was amended after the fact to carry a known-issue warning, which is why it now carries a later timestamp than the 2026.8.1 release that superseded it. That is the only mechanism by which this feed communicates anything: a release gets edited when it turns out to be unsafe to run.
◆ Prediction
Expect continued checksum-only releases every two to three weeks, with substantive text appearing only when another regression forces a retroactive warning.
SLmetrics
0.0INFRA · APIS
A young ML metrics package rewrote its own backend twice in six months chasing speed.
◆ Current state
SLmetrics provides supervised learning evaluation metrics for R — confusion matrices, classification and regression measures, ROC and precision-recall curves — with the computation pushed into C++. After a series of pre-releases it now runs on an Armadillo backend, supports OpenMP parallelism and LAPACK/BLAS, and reports 5-20x speedups over its earlier implementations. The API has been reshaped for extensibility, with an estimator argument replacing the fixed aggregation options.
◆ Where it's heading
Every release in this timeline is about making the same metrics compute faster or compose better. The backend moved from Rcpp to plain C++, gained OpenMP, then was ported wholesale from Eigen to Armadillo with heavy templating. In parallel the author has been widening the API's joints: generic S3 signatures, an extensible estimator argument, and function signatures loose enough that wrapping packages can rename arguments. Bundled datasets and embedded formulas in the docs point at teaching and benchmarking use. The package still labels itself pre-release, which is consistent with how freely it has broken argument names along the way.
◆ Prediction
A stable non-pre-release version is the natural next step now that the backend has settled on Armadillo, though the repeated willingness to rename arguments suggests more API churn may come first.
Alternatives to Cloudflare Tunnel and SLmetrics
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 Cloudflare Tunnel or SLmetrics.
rJavaEnv
The R package that installs Java for you stopped needing an update every time Java ships.
traits.build
The AusTraits engine, generalised for anyone's trait database, now links measurements to real specimens.
rwasm
The toolchain that gets R packages into the browser is optimising for payload size, not features.
Fail2Ban
Fail2Ban finally ships 1.1.1 after 14 months in beta, with a botched deb package on the way out the door
plogr
A logging header for Rcpp packages that sat untouched for nine years, then changed how it switches on
See all Cloudflare Tunnel alternatives → · See all SLmetrics alternatives →
Recent activity from Cloudflare Tunnel and SLmetrics
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoCloudflare Tunnel2026.8.2
- 3d agoCloudflare Tunnel2026.8.0 pulled: trailing-slash stripping breaks WordPress origins
- 3d agoCloudflare Tunnel2026.8.1
- 24d agoCloudflare Tunnel2026.7.3
- 1mo agoCloudflare Tunnel2026.7.2
- 1mo agoCloudflare Tunnel2026.7.1
- 1y agoSLmetricsArmadillo backend brings 5-20x speedups and an extensible metrics API ⚡
- 1y agoSLmetricsConsistent S3 signatures and three bundled datasets
- 1y agoSLmetricsRegression metrics 2-10x faster with reworked OpenMP controls
- 1y agoSLmetricsOpenMP parallelism and a soft-label entropy family
- 1y agoSLmetricsCross-entropy loss and relative RMSE with three normalisations
- 1y agoSLmetricsSample weights flow through the confusion matrix
Frequently asked questions
What is the difference between Cloudflare Tunnel and SLmetrics?
They serve adjacent needs but don't currently overlap on shipped themes. Cloudflare Tunnel is currently shipping more aggressively (velocity 5.0 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 Cloudflare Tunnel better than SLmetrics?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Cloudflare Tunnel is currently shipping more aggressively (velocity 5.0 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 Cloudflare Tunnel?
Top Cloudflare Tunnel alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Cloudflare Tunnel alternatives" section above for the current picks, or visit /alternatives/cloudflared for the full list with editorial commentary on each.
What are the best alternatives to SLmetrics?
Top SLmetrics alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "SLmetrics alternatives" section above for the current picks, or visit /alternatives/slmetrics for the full list with editorial commentary on each.