Show HN: Ark v0.5.0 – A Minimal, High-Performance Entity Component System for Go
Hacker News (score: 10)Description
If you're new to Ark: it's a high-performance Go ECS library with a clean API and zero dependencies. Beyond its core ECS functionality, Ark stands out for ultra-fast batch operations and first-class support for entity relationships.
This release brings notable performance improvements to queries via smarter indexing, plus new methods for sampling random entities. The documentation has been expanded with a chapter on design philosophy and limitations, along with new examples covering advanced topics like entity relations, world locking, spatial indexing, and parallel simulations.
If you’re exploring ECS patterns in Go or looking for a an ECS that delivers performance without sacrificing usability, I’d love to hear your feedback. Contributions are welcome.
Changelog: github.com/mlange-42/ark/blob/main/CHANGELOG.md
More from Hacker
Show HN: Minikv – Distributed key-value and object store in Rust (Raft, S3 API)
Show HN: Minikv – Distributed key-value and object store in Rust (Raft, S3 API) Hi HN,<p>I’m releasing minikv, a distributed key-value and object store in Rust.<p>What is minikv? minikv is an open-source, distributed storage engine built for learning, experimentation, and self-hosted setups. It combines a strongly-consistent key-value database (Raft), S3-compatible object storage, and basic multi-tenancy. I started minikv as a learning project about distributed systems, and it grew into something production-ready and fun to extend.<p>Features/highlights:<p>- Raft consensus with automatic failover and sharding - S3-compatible HTTP API (plus REST/gRPC APIs) - Pluggable storage backends: in-memory, RocksDB, Sled - Multi-tenant: per-tenant namespaces, role-based access, quotas, and audit - Metrics (Prometheus), TLS, JWT-based API keys - Easy to deploy (single binary, works with Docker/Kubernetes)<p>Quick demo (single node):<p>git clone <a href="https://github.com/whispem/minikv.git" rel="nofollow">https://github.com/whispem/minikv.git</a> cd minikv cargo run --release -- --config config.example.toml curl localhost:8080/health/ready # S3 upload + read curl -X PUT localhost:8080/s3/mybucket/hello -d "hi HN" curl localhost:8080/s3/mybucket/hello<p>Docs, cluster setup, and architecture details are in the repo. I’d love to hear feedback, questions, ideas, or your stories running distributed infra in Rust!<p>Repo: <a href="https://github.com/whispem/minikv" rel="nofollow">https://github.com/whispem/minikv</a> Crate: <a href="https://crates.io/crates/minikv" rel="nofollow">https://crates.io/crates/minikv</a>
CLI's completion should know what options you've typed
CLI's completion should know what options you've typed
Show HN: Python SDK – forecasting with foundation time-series and tabular models
Show HN: Python SDK – forecasting with foundation time-series and tabular models We’ve built a Python SDK for running inference on foundation models designed for time-series and tabular data. They are new SOTA models for time-series and tabular tasks and work out of the box. They do not require model training or feature engineering. The link to the GitHub repository is: <a href="https://github.com/S-FM/faim-python-client" rel="nofollow">https://github.com/S-FM/faim-python-client</a>
Show HN: Deterministic PCIe Diagnostics for GPUs on Linux
Show HN: Deterministic PCIe Diagnostics for GPUs on Linux I built a small Linux tool to deterministically verify GPU PCIe link health and bandwidth.<p>It reports: - Negotiated PCIe generation and width - Peak Host→Device and Device→Host memcpy bandwidth - Sustained PCIe TX/RX utilization via NVML - A rule-based verdict derived from observable hardware data only<p>This exists because PCIe issues (Gen downgrades, reduced lane width, risers, bifurcation) are often invisible at the application layer and can’t be fixed by kernel tuning or async overlap.<p>Linux-only: it relies on sysfs and PCIe AER exposure that Windows does not provide.
No other tools from this source yet.