For anyone new to Charlie Stross' fiction, here are a few links for your perusal:

Stross' 2005 novel Accelerando [1] set around the technological singularity, is made freely available by the author

In addition to various standalone science fiction novels, Stross also has a couple of long series, the Laundry Files and Merchant Princes / Empire Games.

The setting of the Laundry Files is a mix of magic as a branch of applied math, UK secret service bureaucracy and lovecraftian horror. Stross' laundry files novella "Down on the Farm" is available to read here [2].

Stross' early novelette A Colder War, published in 2000, can be read here [3].

The Merchant Princes series is also a great yarn. The setup is that parallel universes with alternate history Earths exist, and tech journalist Miriam discovers she belongs to a bloodline who can "jaunt" into a parallel medieval Earth. One thing Stross does well is applying the science fictional / economic lens of "OK, so if that were true, then what happens?", so instead of simple fantasy tale we get an exploration of stuff like the transdimensional narco-courier-for-guns trade, or what would Rumsfeld do if transdimensional narcoterrorists made a severe error of judgement and picked a fight with the US? The series gets pretty dark...

[1] http://www.antipope.org/charlie/blog-static/fiction/accelera... [2] https://reactormag.com/down-on-the-farm/ [3] https://www.infinityplus.co.uk/stories/colderwar.htm

My favourite Stross books are "Saturn's Children", "Singularity Sky" and "Iron Sunrise" in that order, to name some of his other books. "Neptune's Breed" is the sequel to "Saturn's Children". For "Singularity Sky" and "Iron Sunrise", I really enjoyed the concept of an AI that seeks to prevent the use of time travel to change history, by using secret agents that are distributed between multiple star systems.

He's also occasionally been on HN, userid cstross, though it doesn't look like he's commented since 2024.