thanos / ExZarr / 08e7387ac92f80dc8c922f22472a97916497e6e6-PR-230

75%

main: 75%

Pull #230

github

README audit
Several sections were stale relative to v1.1.0. Updated:

Area	Was wrong	Fixed
Features
Compression described as "zlib + fallback zstd/lz4"
Full Zig NIF codec list; added Telemetry
Streaming quick start
Only stream_chunks
Added stream_slices example + telemetry guide link
Architecture
zlib + GenServer only
Streaming, pipelines, telemetry, Zig NIFs
Development
No toolchain reqs
Zig 0.16 + compression lib install steps
CI/CD
Elixir 1.16–1.19, macOS+Ubuntu
1.17–1.20-rc, OTP 26–28, Ubuntu, Zig 0.16, docs job
Testing
466 tests, 21 properties
1,526 tests, 67 properties, 146 doctests
Key modules
No streaming/telemetry
Telemetry, Flow, GenStage, Broadway
Roadmap
Listed streaming/Broadway as future
Points to ROADMAP.md; v1.1 done + next four releases
Already accurate: version ~> 1.1, streaming quick start APIs, compression codec list, Zarr v3 section.

ROADMAP audit
ROADMAP.md was thin and outdated — v1.1 checkboxes only, v1.2/v2.0 with no detail, no review-fix work, no release sequencing. Rewrote it with:

Expanded v1.1.0 shipped list (telemetry, review fixes, test counts)
Four concrete upcoming releases (below)
Pre-v1.1 completed section so history isn’t lost
Suggested next four releases
Already captured in ROADMAP.md:

v1.2.0 — Cloud storage & reliability
Unified retry/backoff for S3/GCS/Azure, Azure SDK migration, v3 async store read alignment, cloud integration tests.

v1.3.0 — Data science interop
Explorer streaming, Nx batch recipes from stream_chunks, livebook curriculum, cookbook expansion.

v1.4.0 — Performance & packaging
Async codec pipeline (overlap I/O + decode), vendored/static codecs (drop apt/brew deps), PackBits/Categorize filters, sharding improvements.

v2.0.0 — Distributed processing
Horde/:pg multi-node chunk work, PartitionSupervisor pools, cross-node telemetry, distributed Broadway topologies.

Rationale: v1.1 delivered streaming on one node; the next releases harden cloud ops (1.2), connect to Explorer/Nx (1.3), improve th... (continued)

88 of 170 new or added lines in 8 files covered. (51.76%)

3477 of 4652 relevant lines covered (74.74%)

879.33 hits per line