Alternatives
Products that do what Cap'n-rs – Rust implementation of Cloudflare's Cap'n Web protocol does
Last week Cloudflare released Cap'n Web [1], a schema-free capability-based RPC protocol. I built capn-rs this week - a Rust implementation with full wire protocol compatibility. Links: GitHub: https://github.com/currentspace/capn-rs Crates: https://crates.io/crates/capnweb-server API docs: https://docs.rs/capnweb-server What's working: Wire compatibility verified via integration tests against TypeScript reference Multi-transport: HTTP batch, WebSocket, WebTransport (HTTP/3) Complete IL (intermediate language) expression evaluator…
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I've been working on this for some time now, starting with vm2, then deno-core for 2 years, and recently rewrote it on rusty_v8 with Claude's help. OpenWorkers lets you run untrusted JS in V8 isolates on your own infrastructure. Same DX as Cloudflare Workers, no vendor lock-in. What works today: fetch, KV, Postgres bindings, S3/R2, cron scheduling, crypto.subtle. Self-hosting is a single docker-compose file + Postgres. Would love feedback on the architecture and what feature you'd want next.
Jan 2026 · openworkers.com
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I am happy to announce Stalwart JMAP [1], an open-source JSON Meta Application Protocol server that aims to be scalable, robust and secure. Some of its key features are: - JMAP Core, JMAP Mail and JMAP over WebSocket full compliance. - IMAP4 rev2/1 support via Stalwart IMAP, an imap-to-jmap proxy [2]. - Scalable and fault tolerant: consensus over Raft, node autodiscovery over gossip and read-only replicas. - RocksDB backend with full-text search support in 17 languages. - OAuth 2.0 authorization code and device authorization flows. - Domain Keys Identified Mail (DKIM) message signing. -…
2022 · github.com
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2021 · github.com
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Hey HN, I find myself reaching for tools like it-tools.tech or other random sites every now and then during development or debugging. So, I built a toolkit with a sane and simple CLI interface for most of those tools. For the curious and lazy, at the moment, ut has tools for, - Encoding: base64 (encode, decode), url (encode, decode) - Hashing: md5, sha1, sha224, sha256, sha384, sha512 - Data Generation: uuid (v1, v3, v4, v5), token, lorem, random - Text Processing: case (lower, upper, camel, title, constant, header, sentence, snake), pretty-print, diff - Development Tools: calc, json…
Oct 2025 · github.com
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Nov 2025 · github.com
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I have two instances that I'd love to see HN hug to death at https://jonline.io (to which I manually deploy) and https://getj.online (which is deployed to for any commit to main on GitHub). They're both running (side by side, in their own namespaces) on a bare minimum 2GB/50GB DigitalOcean droplet using DOKS (DigitalOcean Kubernetes). The configurations are in: https://github.com/JonLatane/jonline/tree/main/deploys/k8s So far this is a solo endeavor, but with my recent CI integrations and consolidations of things within the…
2023 · github.com
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2021 · gitlab.com
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2023 · github.com
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A Language Server Protocol (LSP) implementation for systemd unit files, providing editing support with syntax highlighting, diagnostics, autocompletion, and documentation made with rust.
2025 · github.com
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An ultra-fast, single-binary MCP server written in Rust as a lightweight alternative to Node.js/Python. - StamManif/mcp-stama
24d ago · github.com
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Hi everyone, I built a runtime to isolate untrusted code using wasm sandboxes. Basically, it protects your host system from problems that untrusted code can cause. We’ve had a great discussion about sandboxing in Python lately that elaborates a bit more on the problem [1]. In TypeScript, wasm integration is even more natural thanks to the close proximity between both ecosystems. The core is built in Rust. On top of that, I use WASI 0.2 via wasmtime and the component model, along with custom SDKs that keep things as idiomatic as possible. For example, in Python we have a simple decorator:…
Feb 2026 · github.com
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I built this because I wanted to make outbound and accept inbound HTTP/3 and raw QUIC connections from ordinary Node.js code, without building Node from source or putting everything behind a reverse proxy. Repo: https://github.com/currentspace/http3 npm: https://www.npmjs.com/package/@currentspace/http3 It’s a native package around Rust/quiche. It supports both client and server APIs, I'm using it in a couple of projects: creating raw QUIC streams, datagrams, custom ALPN, session behavior, and HTTP/3 client work from Node. I've…
Jun 2026 · github.com
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This is an educational reference implementation showing how to build reasonably secure, standards-compliant authentication from first principles on Cloudflare Workers. Stack: Hono, Turso (libSQL), PBKDF2-SHA384 + normalization + common-password checks, JWT access + refresh tokens with revocation support, HTTP-only SameSite cookies, device tracking. It's deliberately minimal — no OAuth, no passkeys, no magic links, no rate limiting — because the goal is clarity and auditability. I wrote it mainly to deeply understand edge-runtime auth constraints and to have a clean Apache-2.0 example that…
Feb 2026 · github.com
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For the last month or so I've been working on bewCloud, and today I'm making its source code public and open! Right now, the Dashboard (URLs + freeform notes), News (RSS/Atom/JSON feeds), and Contacts (CardDav) are working. If you have any suggestions, comments, or recommendations, I'd love to hear it. Thank you for your attention and kindness. I really appreciate it!
2024 · bewcloud.com
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BoringSSL and nghttp2. Matches JA3N, JA4, and JA4_R fingerprints. Supports HTTP/2, async/await, and works with Cloudflare-protected sites. Not trying to compete with curl_cffi - just a learning project that turned into something functional.
Nov 2025 · github.com
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I built rapid-rs to eliminate the hours of boilerplate when starting a new Rust web service. One command gets you: - Auto-configured DB, logging, CORS - OpenAPI/Swagger UI at /docs - Request validation - Production-ready observability Built on Axum. Early benchmarks show ~50K req/s with 10-20MB RAM. This is v0.1 - feedback welcome! Crates: https://crates.io/crates/rapid-rs
Nov 2025 · crates.io
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I am happy to announce Stalwart SMTP [1], a modern SMTP server developed in Rust with a focus on security, speed, and extensive configurability. It features built-in DMARC, DKIM, SPF and ARC support for message authentication, strong transport security through DANE, MTA-STS and SMTP TLS reporting, and offers great flexibility and customization thanks to its dynamic configuration rules and native support for Sieve scripts. The project has been recently awarded a grant from NLNet and the European Commission's Next Generation Internet program to develop a mail server in Rust. The next step in…
2023 · github.com
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2022 · wasmlabs.dev
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2025 · github.com
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2015 · github.com
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2023 · github.com
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I built nblm, a Rust-based toolset to automate Google’s NotebookLM Enterprise API reliably. It aims to replace brittle curl snippets with a stable interface you can use in cron/CI or agentic systems. * Python SDK (type-safe): IDE auto-complete, fewer JSON key typos, fits complex workflows. * Standalone CLI: single fast binary for scripts and pipelines. * Handles auth, batching, retries; you focus on logic. Rust core is fast and memory-safe. * Enterprise API only (consumer NotebookLM isn’t supported). Repo: https://github.com/K-dash/nblm-rs Feedback is welcome—I'm…
Oct 2025 · github.com
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Hi HN! I built RustNet, a Terminal UI based network monitor written in Rust that shows real-time connections with process identification and protocol detection. What may make it interesting: • Deep packet inspection for HTTP, HTTPS/TLS (with SNI), DNS, and QUIC protocol detection • Process identification using eBPF on Linux (experimental) and PKTAP on macOS which does also catch short-lived processes that polling procfs or lsof would miss • Multi-threaded packet processing with lock-free data structures for the UI • Cross-platform (Linux, macOS, Windows but process identification so far…
Sep 2025 · github.com
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