Alternatives
Products that do what Dsync: a tool to sync source directories/files to a target directory does
Hello HN. I worked on this small project recently called dsync. I have a few directories where I keep adding stuff and I need to sync them to an external drive from time to time. In the spirit of "write your own tools", I wrote my own. The tool itself is really simple. It tries to sync source directories or files to a destination directory based on size and modification time, basically copying the source files if they don't match. dsync can use multiple threads (specified via an option). It uses a bounded multi-producer multi-consumer queue (C implementation of Dmitry Vyukov's bounded MPMC…
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i made sink. it's a simple little tool that continuously syncs folders between 2 devices. no cloud, no email, flash drives, no bs. it just uses your local wifi. run it on your machines, tell them to trust each other, and you're set. and if you manage to edit the same file at once, it handles the conflict and saves both copies. for anyone who just wants to get files from point a to b without the headache. hope it makes your life a bit less annoying. github: https://github.com/sirbread/sink binary:…
2025 · github.com
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Hi HN, Today we’re launching PowerSync, a Postgres<>SQLite bi-directional sync engine that enables an offline-first app architecture. It currently supports Flutter, React Native and web (JavaScript) using Wasm SQLite in the browser, with more client SDKs on the way. Conrad and I (Ralf) have been working on our sync engine since 2009, originally as part of a full-stack app platform. That version of the system is still used in production worldwide and we’ve learnt a lot from its use cases and scaling. About a year ago we started on spinning off PowerSync as a standalone product that is…
2023 · powersync.com
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Hey HN! I’ve written a bunch of WebSocket servers over the years to do simple things like state synchronization, WebRTC signaling, and notifying a client when a backend job was run. I realized that if I had a simple way to create a private, temporary, mini-redis that the client could talk to directly, it would save a lot of time. So we created DriftDB. In addition to the open source server that you can run yourself, we also provide https://jamsocket.live where you can use an instance we host on Cloudflare’s edge (~13ms round trip latency from my home in NY). You may have seen my…
2023 · driftdb.com
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An alternative S3 sync tool to extremly fast sync s3 buckets. Feedback and contributions are welcome!
2024 · github.com
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This is a long-running project that started as the proverbial need to scratch my own itch and then somehow evolved into a full-time job of the past 6 years. Link: https://bvckup2.com I thought I'd do a Show HN for two reasons. 1. I obviously want to show my baby to those who haven't seen it. Its primary purpose is to do very fast file replication. If you are familiar with "robocopy /mir" - same idea, but on steroids. Lots of them. It can be used for both mirroring and archiving backups, among other things. It is light, very small and it is really quite fast. Half of the…
2019 · bvckup2.com
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Hi everyone! I'm trying to create a version control system that solves some of the problems that Git and other version control software has when working in a team. Let me know if you have any feedback!
2023 · jamsync.dev
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2019 · github.com
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Hi, I’m Mikkel and I’m building Async, an open-sourced developer tool that combines AI coding with task management and code review. What Async does: - Automatically researches coding tasks, asks clarifying questions, then executes code changes in the cloud - Breaks work into reviewable subtasks with stack diffs for easier code review - Handles the full workflow from issue to merged PR without leaving the app Demo here: https://youtu.be/98k42b8GF4s?si=Azf3FIWAbpsXxk3_ I’ve been working as a developer for over a decade now. I’ve tried all sorts of AI tools out there including…
2025 · github.com
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2021 · kyall.notion.site
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I built a CLI tool called `sshsync` to run shell commands and transfer files across multiple servers over SSH concurrently. It was inspired by tools like `pssh`, but I wanted something more modern, intuitive, and Pythonic. What it does: - Run shell commands on multiple servers (in parallel) - Push/pull files or directories with progress bars - Uses `~/.ssh/config` and lets you group hosts with YAML - Supports `--dry-run` mode to preview actions without executing - Outputs results using `rich` (tables, colors) - Built with `Typer`, `asyncssh`, and `rich` There’s no daemon or…
2025 · github.com
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Tasks are a primitive for asynchronous programming and an alternative to working with threads directly. Instead of creating a thread, performing work, then waiting on it using synchronization primitives, you only define a unit of work and let a scheduler decide when and where to execute it. The threads that the scheduler uses are created once and reused for many tasks throughout the program's lifetime. In most cases, creating and executing a task requires not even a single syscall and is a significantly faster operation than creating a thread, resulting in lower latency. Furthermore, tasks…
2024 · github.com
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Visual GitHub management directly from a graphical interface
Jun 2026 · github.com
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Hey everyone, just wanted to share a quick project I built a bit ago and finally cleaned up enough to post. The premise is simple, you have a file on one computer that you want on a different computer on the same network and don't want a lot of fuss. For the file you want to copy, on the machine where the file is located, run: ./bcp filename Now go to the computer (on the same network) where you want the file to be at, and run: ./bcp The file will be copied over the network and you're done. I created it as a nice way of not having to worry about ssh or anything else really. In fact, it is so…
2013 · github.com
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Hello, Some time ago I did a data logger for fun, just to check if I could beat the performance of an old C++ project of mine (mini-async-log) and to avoid letting my multithreading-C skills rust when on a non-programming gig (using Yocto/OE, very little programming). This project is a BSD licensed, producer-wait-free (when using thread-local storage) generic message logger with high performance, decent test coverage, and type-safe C strings (requires C11 or C++ compiler). It was a shame to let this project to die unknown, as I think that it has potential to be used on some niches as…
2019
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I had this backup code working reliably for years, using local file system, vps/dedicated server, or remote storage for backup, then I finally get time to wrap README, iron few missing switches and publish. Should be production ready and reliable, so it could be useful to others. Contributors are welcome.
2023 · github.com
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Yes, Python. I can already hear the screams from the rafters telling me how terrible of a choice Python is - but in my case, I valued modularity, extensibility, hackability over raw performance. (It was also a challenge to myself to see how far I can get without referencing existing implementations) Synchrotron processes nodes: simple Python classes with typed I/O and a render() method for processing. It can be as concise as 5 lines: class IncrementNode(Node): input: StreamInput output: StreamOutput def render(self, ctx): self.out.write(self.a.read(ctx) + 1) Nodes can then be spawned…
2025 · synchrotron.thatother.dev
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2015 · github.com
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