Celso Martinho
@celso.bsky.social
👶 From when Mosaic took over Gopher
🏢 VP of Engineering @cloudflare.social
🕹️ Slightly addicted to retrocomputing
🏢 VP of Engineering @cloudflare.social
🕹️ Slightly addicted to retrocomputing
“Once it’s on the Internet it stays there forever” is no longer true. It’s increasingly hard, if not impossible, to find old information about niche topics using traditional search engines. We should al support open preservation projects around the world, they’re doing important public service.
December 27, 2025 at 1:55 PM
“Once it’s on the Internet it stays there forever” is no longer true. It’s increasingly hard, if not impossible, to find old information about niche topics using traditional search engines. We should al support open preservation projects around the world, they’re doing important public service.
Now we're getting places!
December 26, 2025 at 8:23 PM
Now we're getting places!
Alright, let’s dump the ROM and see what's inside.
December 26, 2025 at 8:21 PM
Alright, let’s dump the ROM and see what's inside.
I’m getting quite good at desoldering big chips from PCBs. Having a Hakko and a hot air station helps a lot, but some skills are still needed.
December 26, 2025 at 7:07 PM
I’m getting quite good at desoldering big chips from PCBs. Having a Hakko and a hot air station helps a lot, but some skills are still needed.
It sure is Christmas today.
December 25, 2025 at 11:47 AM
It sure is Christmas today.
Confirmed it’s a 7910 modem. Thanks y’all!
I will be forever thankful to anyone who can find me the data sheet for this old V21/V23 modem chip, because I can’t.
December 25, 2025 at 11:06 AM
Confirmed it’s a 7910 modem. Thanks y’all!
I will be forever thankful to anyone who can find me the data sheet for this old V21/V23 modem chip, because I can’t.
December 24, 2025 at 11:36 AM
I will be forever thankful to anyone who can find me the data sheet for this old V21/V23 modem chip, because I can’t.
16,000 C64 Ultimate sold. Impressive.
Commodore 64 Ultimate Sales Tracker – Live C64 Stats Since Launch
Commodore 64 Ultimate sales tracker – Real-Time Stats for the New Commodore 64 Ultimate
slapsoft.com
December 23, 2025 at 12:12 PM
16,000 C64 Ultimate sold. Impressive.
Huge backlog, this doesn’t help.
December 17, 2025 at 11:50 PM
Huge backlog, this doesn’t help.
Reposted by Celso Martinho
That email from the .christmas TLD is probably naughty. In 2025, 99.8% of messages from that domain analyzed by @cloudflare.social Email Security were classified as malicious or spam. The .lol TLD wasn't much better -- it's no laughing matter.
Find out more at radar.cloudflare.com/year-in-revi...
Find out more at radar.cloudflare.com/year-in-revi...
December 16, 2025 at 4:43 PM
That email from the .christmas TLD is probably naughty. In 2025, 99.8% of messages from that domain analyzed by @cloudflare.social Email Security were classified as malicious or spam. The .lol TLD wasn't much better -- it's no laughing matter.
Find out more at radar.cloudflare.com/year-in-revi...
Find out more at radar.cloudflare.com/year-in-revi...
Going to a Kruder & Dorfmeister concert in Lisbon, the last of their tour, was certainly the highlight of the weekend.
December 15, 2025 at 11:53 AM
Going to a Kruder & Dorfmeister concert in Lisbon, the last of their tour, was certainly the highlight of the weekend.
Reposted by Celso Martinho
A M7.6 earthquake occurred off the coast of Japan at 14:15 UTC, and drove a near-immediate 22% increase in request traffic from the country. A concurrent bump in traffic from mobile devices was observed at that time as well.
radar.cloudflare.com/traffic/jp?d...
x.com/USGS_Quakes/...
radar.cloudflare.com/traffic/jp?d...
x.com/USGS_Quakes/...
December 8, 2025 at 5:13 PM
A M7.6 earthquake occurred off the coast of Japan at 14:15 UTC, and drove a near-immediate 22% increase in request traffic from the country. A concurrent bump in traffic from mobile devices was observed at that time as well.
radar.cloudflare.com/traffic/jp?d...
x.com/USGS_Quakes/...
radar.cloudflare.com/traffic/jp?d...
x.com/USGS_Quakes/...
Reposted by Celso Martinho
We just launched a new product - Pebble Index 01
It's a small ring, with a button and mic. Press the button, talk and it saves your thought.
I use it many times during the day to jot down reminders, todos, book recs, etc while my hands are full.
Just $75 - preorders on rePebble.com/index
It's a small ring, with a button and mic. Press the button, talk and it saves your thought.
I use it many times during the day to jot down reminders, todos, book recs, etc while my hands are full.
Just $75 - preorders on rePebble.com/index
December 9, 2025 at 3:40 PM
We just launched a new product - Pebble Index 01
It's a small ring, with a button and mic. Press the button, talk and it saves your thought.
I use it many times during the day to jot down reminders, todos, book recs, etc while my hands are full.
Just $75 - preorders on rePebble.com/index
It's a small ring, with a button and mic. Press the button, talk and it saves your thought.
I use it many times during the day to jot down reminders, todos, book recs, etc while my hands are full.
Just $75 - preorders on rePebble.com/index
[pt] Pérola deliciosa encontrada não sei como pelo @luiscorreia.pt. Em ‘87 este miúdo entretinha-se a enviar cartas para revistas de informática, indignado pela falta de cobertura as plataformas minoritárias.
December 8, 2025 at 3:15 PM
[pt] Pérola deliciosa encontrada não sei como pelo @luiscorreia.pt. Em ‘87 este miúdo entretinha-se a enviar cartas para revistas de informática, indignado pela falta de cobertura as plataformas minoritárias.
Seed.
Unconventional AI raised a $475M seed led by a16z and Lightspeed at a $4.5B valuation to build a more energy-efficient AI computer, part of an up to $1B round (Rachel Metz/Bloomberg)
Main Link | Techmeme Permalink
Main Link | Techmeme Permalink
December 8, 2025 at 3:09 PM
Seed.
I also was exposed to the Atari 2600, Timex Sinclair 2068, C128, Amiga 1000 and Atari 520ST from friends and family.
What was your personal retro-computer timeline into modern days? Here’s mine.
ZX81 > ZX Spectrum 48K > Timex 2048 > C64 > Amiga 500 > Amiga 3000 > Amiga 1200 > Multiple Linux Laptops > PowerBook G4
ZX81 > ZX Spectrum 48K > Timex 2048 > C64 > Amiga 500 > Amiga 3000 > Amiga 1200 > Multiple Linux Laptops > PowerBook G4
December 7, 2025 at 3:14 PM
I also was exposed to the Atari 2600, Timex Sinclair 2068, C128, Amiga 1000 and Atari 520ST from friends and family.
What was your personal retro-computer timeline into modern days? Here’s mine.
ZX81 > ZX Spectrum 48K > Timex 2048 > C64 > Amiga 500 > Amiga 3000 > Amiga 1200 > Multiple Linux Laptops > PowerBook G4
ZX81 > ZX Spectrum 48K > Timex 2048 > C64 > Amiga 500 > Amiga 3000 > Amiga 1200 > Multiple Linux Laptops > PowerBook G4
December 7, 2025 at 12:13 PM
What was your personal retro-computer timeline into modern days? Here’s mine.
ZX81 > ZX Spectrum 48K > Timex 2048 > C64 > Amiga 500 > Amiga 3000 > Amiga 1200 > Multiple Linux Laptops > PowerBook G4
ZX81 > ZX Spectrum 48K > Timex 2048 > C64 > Amiga 500 > Amiga 3000 > Amiga 1200 > Multiple Linux Laptops > PowerBook G4
If you're near Lisbon and into digital arts & music and retro-computing stuff, Inercia 2025 is happening this Saturday and Sunday. 2025.inercia.pt/en/
December 5, 2025 at 7:02 PM
If you're near Lisbon and into digital arts & music and retro-computing stuff, Inercia 2025 is happening this Saturday and Sunday. 2025.inercia.pt/en/
If you’re in the business of retro-computer hacking, there aren’t enough DIN connectors.
November 28, 2025 at 8:47 PM
If you’re in the business of retro-computer hacking, there aren’t enough DIN connectors.
Reposted by Celso Martinho
Do you know about the “Easter eggs”? Phone this number from Carol’s TV screen for a message: (202) 808-3981. Also, Google
The word pluribus and you’ll see a message. Right now I’m in Vegas and wondering when I might see a message to Carol on Sphere!
The word pluribus and you’ll see a message. Right now I’m in Vegas and wondering when I might see a message to Carol on Sphere!
November 26, 2025 at 12:59 AM
Do you know about the “Easter eggs”? Phone this number from Carol’s TV screen for a message: (202) 808-3981. Also, Google
The word pluribus and you’ll see a message. Right now I’m in Vegas and wondering when I might see a message to Carol on Sphere!
The word pluribus and you’ll see a message. Right now I’m in Vegas and wondering when I might see a message to Carol on Sphere!
Vince Gilligan did it again. Pluribus is great.
November 25, 2025 at 11:52 PM
Vince Gilligan did it again. Pluribus is great.