Alex
@alexleighton.com
n8n vulnerability — the exploit details are interesting, but the bigger point is scarier: LLM agent systems concentrate lots of sensitive data in one place.
alexleighton.com/posts/2026-0...
alexleighton.com/posts/2026-0...
n8n Vulnerability
The sensitive nature of agent data infrastructure.
alexleighton.com
February 3, 2026 at 6:05 AM
n8n vulnerability — the exploit details are interesting, but the bigger point is scarier: LLM agent systems concentrate lots of sensitive data in one place.
alexleighton.com/posts/2026-0...
alexleighton.com/posts/2026-0...
Listening to Fade by Sub Focus.
Contact is a very nice drum and bass album from Sub Focus, all of the tracks are polished.
alexleighton.com/posts/2026-0...
Contact is a very nice drum and bass album from Sub Focus, all of the tracks are polished.
alexleighton.com/posts/2026-0...
Listening To: Fade
By Sub Focus
alexleighton.com
February 3, 2026 at 6:01 AM
Listening to Fade by Sub Focus.
Contact is a very nice drum and bass album from Sub Focus, all of the tracks are polished.
alexleighton.com/posts/2026-0...
Contact is a very nice drum and bass album from Sub Focus, all of the tracks are polished.
alexleighton.com/posts/2026-0...
Listening to HARDWAREZ by MASTER BOOT RECORD.
Digital, chiptune metal. A unique style that I didn’t know I wanted.
alexleighton.com/posts/2026-0...
Digital, chiptune metal. A unique style that I didn’t know I wanted.
alexleighton.com/posts/2026-0...
Listening To: HARDWAREZ
By MASTER BOOT RECORD
alexleighton.com
February 3, 2026 at 6:00 AM
Listening to HARDWAREZ by MASTER BOOT RECORD.
Digital, chiptune metal. A unique style that I didn’t know I wanted.
alexleighton.com/posts/2026-0...
Digital, chiptune metal. A unique style that I didn’t know I wanted.
alexleighton.com/posts/2026-0...
"The secret fear of the morally depraved is that virtue is actually common, and that they’re the ones who are alone."
Adam Serwer for The Atlantic.
alexleighton.com/posts/2026-0...
Adam Serwer for The Atlantic.
alexleighton.com/posts/2026-0...
Quote: The Secret Fear of the Morally Depraved
On courage, diversity, and belonging.
alexleighton.com
January 31, 2026 at 6:05 PM
"The secret fear of the morally depraved is that virtue is actually common, and that they’re the ones who are alone."
Adam Serwer for The Atlantic.
alexleighton.com/posts/2026-0...
Adam Serwer for The Atlantic.
alexleighton.com/posts/2026-0...
Interesting to watch the orchestration of coding agents moving from speculation to expensive reality. On Gas Town and Cursor's recent experiments.
alexleighton.com/posts/2026-0...
alexleighton.com/posts/2026-0...
Orchestrating Coding Agents in 2026
Experimental results in the agent orchestration design space.
alexleighton.com
January 31, 2026 at 6:04 PM
Interesting to watch the orchestration of coding agents moving from speculation to expensive reality. On Gas Town and Cursor's recent experiments.
alexleighton.com/posts/2026-0...
alexleighton.com/posts/2026-0...
Without a breakthrough on the prompt injection problem, it’s inappropriate bordering on unethical to expose unrestricted LLM chat to the general public. We software engineers should avoid "chat" as a general interface and keep LLMs constrained to controlled prompts.
alexleighton.com/posts/2026-0...
alexleighton.com/posts/2026-0...
Unrestricted LLM Interaction is Unsafe
Don't ship raw chatbots to your users.
alexleighton.com
January 31, 2026 at 6:02 PM
Without a breakthrough on the prompt injection problem, it’s inappropriate bordering on unethical to expose unrestricted LLM chat to the general public. We software engineers should avoid "chat" as a general interface and keep LLMs constrained to controlled prompts.
alexleighton.com/posts/2026-0...
alexleighton.com/posts/2026-0...
Listening To: Half Life by Grafix.
Drum and bass! I especially enjoy the more acid stylings in songs like Skyline.
alexleighton.com/posts/2026-0...
Drum and bass! I especially enjoy the more acid stylings in songs like Skyline.
alexleighton.com/posts/2026-0...
Listening To: Half Life
By Grafix
alexleighton.com
January 30, 2026 at 5:19 AM
Listening To: Half Life by Grafix.
Drum and bass! I especially enjoy the more acid stylings in songs like Skyline.
alexleighton.com/posts/2026-0...
Drum and bass! I especially enjoy the more acid stylings in songs like Skyline.
alexleighton.com/posts/2026-0...
"We live in capitalism, its power seems inescapable — but then, so did the divine right of kings."
Quote from Ursula K. Le Guin that brings me hope.
alexleighton.com/posts/2026-0...
Quote from Ursula K. Le Guin that brings me hope.
alexleighton.com/posts/2026-0...
Quote: Le Guin on Capitalism
Art and the so-called inevitability of the status-quo.
alexleighton.com
January 30, 2026 at 5:17 AM
"We live in capitalism, its power seems inescapable — but then, so did the divine right of kings."
Quote from Ursula K. Le Guin that brings me hope.
alexleighton.com/posts/2026-0...
Quote from Ursula K. Le Guin that brings me hope.
alexleighton.com/posts/2026-0...
It continues to be more profitable to get on the sustainability train than to try to cling to fossil fuels.
alexleighton.com/posts/2026-0...
alexleighton.com/posts/2026-0...
Green Lending
Sustainable energy stays winning, even in finance.
alexleighton.com
January 30, 2026 at 5:12 AM
It continues to be more profitable to get on the sustainability train than to try to cling to fossil fuels.
alexleighton.com/posts/2026-0...
alexleighton.com/posts/2026-0...
Year in review: 2025. Worked on my OCaml static site generator and then used it: 164 posts, RSS, tags, search, and images.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Year in Review: 2025
Building and blogging on this site the past year.
alexleighton.com
January 30, 2026 at 5:03 AM
Year in review: 2025. Worked on my OCaml static site generator and then used it: 164 posts, RSS, tags, search, and images.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Listening To: Luminous by Fred V.
Upbeat, melodic drum and bass, for when you want to feel good rather than edgy. Shoutout to track 2: Collide!
alexleighton.com/posts/2025-1...
Upbeat, melodic drum and bass, for when you want to feel good rather than edgy. Shoutout to track 2: Collide!
alexleighton.com/posts/2025-1...
Listening To: Luminous
By Fred V
alexleighton.com
January 28, 2026 at 4:39 PM
Listening To: Luminous by Fred V.
Upbeat, melodic drum and bass, for when you want to feel good rather than edgy. Shoutout to track 2: Collide!
alexleighton.com/posts/2025-1...
Upbeat, melodic drum and bass, for when you want to feel good rather than edgy. Shoutout to track 2: Collide!
alexleighton.com/posts/2025-1...
TIL: Python has ExceptionGroup and except* to raise multiple unrelated exceptions and then selectively handle only the ones you care about, while re-raising the rest.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
TIL: Python Exception Groups
Grouping exceptions and selectively handling multiple exceptions at once.
alexleighton.com
January 28, 2026 at 4:37 PM
TIL: Python has ExceptionGroup and except* to raise multiple unrelated exceptions and then selectively handle only the ones you care about, while re-raising the rest.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
A tale of two gaps: the Darién Gap (60 miles of jungle breaking the Pan-American Highway) and the Cat Gap (~7 million years with no cat fossils in North America).
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Gaps
In space and time.
alexleighton.com
January 28, 2026 at 4:34 PM
A tale of two gaps: the Darién Gap (60 miles of jungle breaking the Pan-American Highway) and the Cat Gap (~7 million years with no cat fossils in North America).
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Listening To: Free Energy by Dummy. Psychedelic rock; shoegaze or triphop at times. Very nice.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Listening To: Free Energy
By Dummy
alexleighton.com
January 2, 2026 at 6:44 PM
Listening To: Free Energy by Dummy. Psychedelic rock; shoegaze or triphop at times. Very nice.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
VPNs are a trust exercise. I use Mullvad because I have yet to see it fail any external tests.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
VPNs and Trust
Why I landed on Mullvad for my VPN.
alexleighton.com
January 2, 2026 at 6:42 PM
VPNs are a trust exercise. I use Mullvad because I have yet to see it fail any external tests.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Listening To: Giolì & Assia’s DiesisLive handpan set.
Lovely electronic music on the rim of an active volcano (Vulcano, Aeolian Islands). TIL: “volcano” is actually derived from myths about Vulcan and this specific island.
alexleighton.com/posts/2025-1...
Lovely electronic music on the rim of an active volcano (Vulcano, Aeolian Islands). TIL: “volcano” is actually derived from myths about Vulcan and this specific island.
alexleighton.com/posts/2025-1...
Listening To: #DiesisLive Handpan Set
By Giolì & Assia
alexleighton.com
January 2, 2026 at 6:30 PM
Listening To: Giolì & Assia’s DiesisLive handpan set.
Lovely electronic music on the rim of an active volcano (Vulcano, Aeolian Islands). TIL: “volcano” is actually derived from myths about Vulcan and this specific island.
alexleighton.com/posts/2025-1...
Lovely electronic music on the rim of an active volcano (Vulcano, Aeolian Islands). TIL: “volcano” is actually derived from myths about Vulcan and this specific island.
alexleighton.com/posts/2025-1...
TIL there are bearings that are simply a metal surface rather than spheres or rollers. Babbitt metal bearings encase their rotating part, and are soft on purpose — the metal's microstructure provides stability AND reduces friction.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
TIL: Solid Surface Bearing
Made from a soft metal alloy.
alexleighton.com
January 2, 2026 at 6:26 PM
TIL there are bearings that are simply a metal surface rather than spheres or rollers. Babbitt metal bearings encase their rotating part, and are soft on purpose — the metal's microstructure provides stability AND reduces friction.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Listening To: Luminescent Creatures by Ichiko Aoba.
Delicate, crystalline Japanese vocals over soft, contemplative piano and guitar.
alexleighton.com/posts/2025-1...
Delicate, crystalline Japanese vocals over soft, contemplative piano and guitar.
alexleighton.com/posts/2025-1...
Listening To: Luminescent Creatures
By Ichiko Aoba
alexleighton.com
January 2, 2026 at 5:39 AM
Listening To: Luminescent Creatures by Ichiko Aoba.
Delicate, crystalline Japanese vocals over soft, contemplative piano and guitar.
alexleighton.com/posts/2025-1...
Delicate, crystalline Japanese vocals over soft, contemplative piano and guitar.
alexleighton.com/posts/2025-1...
Little Worlds — a tiny Seattle photo set.
Mushrooms and moss, lichen and wood. Mutual life, everywhere you look.
alexleighton.com/posts/2025-1...
Mushrooms and moss, lichen and wood. Mutual life, everywhere you look.
alexleighton.com/posts/2025-1...
Little Worlds
Mutual life.
alexleighton.com
January 2, 2026 at 5:36 AM
Little Worlds — a tiny Seattle photo set.
Mushrooms and moss, lichen and wood. Mutual life, everywhere you look.
alexleighton.com/posts/2025-1...
Mushrooms and moss, lichen and wood. Mutual life, everywhere you look.
alexleighton.com/posts/2025-1...
Listening To: Life Of Leisure by Washed Out.
Lovely, nostalgic album made popular by Portlandia. The sound is so laid-back and richly detailed that you want to lay there and let it envelop you.
alexleighton.com/posts/2025-1...
Lovely, nostalgic album made popular by Portlandia. The sound is so laid-back and richly detailed that you want to lay there and let it envelop you.
alexleighton.com/posts/2025-1...
Listening To: Life Of Leisure
By Washed Out
alexleighton.com
January 2, 2026 at 5:34 AM
Listening To: Life Of Leisure by Washed Out.
Lovely, nostalgic album made popular by Portlandia. The sound is so laid-back and richly detailed that you want to lay there and let it envelop you.
alexleighton.com/posts/2025-1...
Lovely, nostalgic album made popular by Portlandia. The sound is so laid-back and richly detailed that you want to lay there and let it envelop you.
alexleighton.com/posts/2025-1...
Changelog: I added individual image pages to my static site generator — every image now links to its own page with alt text and variant encodings displayed.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Changelog: Individual Image Pages
Images now link to a page featuring the image.
alexleighton.com
January 2, 2026 at 5:32 AM
Changelog: I added individual image pages to my static site generator — every image now links to its own page with alt text and variant encodings displayed.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Listening To: Songs From My Castle Tower by MJ Noble — drum and bass / jungle under ethereal vocals and flute. Evokes a hyped-up fantasy soundtrack.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...
Listening To: Songs From My Castle Tower
By MJ Noble
alexleighton.com
November 30, 2025 at 5:19 AM
Listening To: Songs From My Castle Tower by MJ Noble — drum and bass / jungle under ethereal vocals and flute. Evokes a hyped-up fantasy soundtrack.
alexleighton.com/posts/2025-1...
alexleighton.com/posts/2025-1...