Ask HN: What are you working on? (September 2026)

I'm hosting an book club themed event calendar for New Yorkers!

We also have an official meeting once a month to do book club matchmaking in person.

https://www.commonplace.nyc/

My funny essays newsletter on substack. Link to latest post: https://yelluwcomedy.substack.com/p/the-fascinating-world-of...

Please let me know if you enjoy!

I'm building notmutt (notmuch + mutt). A tabbed, async terminal mail client with unified inbox, with included html viewer(with image support), mcp server, lua scripting. I tried using neomutt with unified inbox and I ended up messing up my maildirs every so often. i also tried adding async tasks(for sending) to neomutt, but there was no interest from the project, which made me realize that there is a lot more to it than just sending async mails.

The goal is to have a very fast terminal mail client where you don't have to wait for any operations and that is tightly integrated with notmuch(a common mail full text search engine) tagging engine, and other workflows(like crm queues and ai summary's if enabled in the config).

There is a document that explains why it was made in go. It has the best notmutt cgo bindings, and there are other reference terminal clients I can use as reference. althogh himalaya(rust) also looks interesting.

I would love to get some help with it, but I don't know where I should post it to get people interested.

https://github.com/fishman/notmutt

https://fishman.github.io/notmutt/

Cranpose - Rust GUI with jetpack Compose API https://github.com/samoylenkodmitry/Cranpose

Two things seriously, one in (partial) jest:

A copy utility that can efficiently deduplicate as it copies, even when the filesystem structure is different. Whilst there are many utilities that can deduplicate, they often either rely on files being on the same filesystem, or having the same structure. If a duplicate is detected, it can either be omitted or hard/soft links created to files in one or more reference locations. In practice I have found this to be invaluable for merging and efficiently consolidating multiple hard drives with partial backups of photos and music, maintaining the complete trees of all sources on a single destination, or only copying files that are new.

Secondly, an efficient protocol for text applications over a network. Think a combination of TN3270, SSH and JavaScript, with a very lightweight client/server architecture. Whilst SSH is great, latency kills many practical applications - this attempts to solve that. It also intends to make applications very simple to implement. As a proof of concept, I implemented a simple forum with login, optimistic posting, quoting, a text editor with mouse support in about 600 lines of code. The protocol, client and server themselves are agnostic to any particular UI toolkit.

Thirdly - microfish, poor person's microfiche using laser printers and autoencoders to preserve readability and machine recoverability of high density prints. Since consumer digital archival media seems to be dying...