Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

David Michael Barr @barrbrain@floss.social

10/7/2025, 2:39:56 AM

Public

I have been working on aehobak, a companion crate to bsdiff[1], a Rust port of bsdiff[2].
https://crates.io/crates/aehobak/0.0.10

It implements a custom compression format, purposed for in-memory applications. The layout is not frozen, but admits very compact patches.

The first extension beyond transcoding formats is direct application of aehobak patches, which can achieve 75% of memcpy speed and is panic-free.

Direct generation of patches is up next.

[1] https://crates.io/crates/bsdiff
[2] https://github.com/mendsley/bsdiff

David Michael Barr @barrbrain@floss.social

10/13/2025, 8:33:56 AM

Public

I have added a baseline implementation of binary differencing to the aehobak crate.
https://crates.io/crates/aehobak/0.0.13

Using this feature consumes about 72% less CPU time than differencing with the bsdiff crate and encoding with aehobak.

There is quite a bit of work to polish it to the same extent as the binary patching feature: panic-free, allocation-free, and early error when output capacity is exceeded.

If you have a fediverse account, you can quote this note from your own instance. Search https://floss.social/users/barrbrain/statuses/115365933005819711 on your instance and quote it. (Note that quoting is not supported in Mastodon.)