@kbeckmann.bsky.social
Building and breaking things for fun. he/him
[coffee nerd talk]
I feel a bit like a failure - been dialing in a V60 brew with an 1Zpresso Q grinder and Hario filters but it keeps tasting a bit bitter no matter what I do.
Gave up, brewed with a Moccamaster with standard Melitta filters and it tastes amazing. Hnggg. Should I try faster filters?
I feel a bit like a failure - been dialing in a V60 brew with an 1Zpresso Q grinder and Hario filters but it keeps tasting a bit bitter no matter what I do.
Gave up, brewed with a Moccamaster with standard Melitta filters and it tastes amazing. Hnggg. Should I try faster filters?
November 10, 2025 at 5:36 AM
[coffee nerd talk]
I feel a bit like a failure - been dialing in a V60 brew with an 1Zpresso Q grinder and Hario filters but it keeps tasting a bit bitter no matter what I do.
Gave up, brewed with a Moccamaster with standard Melitta filters and it tastes amazing. Hnggg. Should I try faster filters?
I feel a bit like a failure - been dialing in a V60 brew with an 1Zpresso Q grinder and Hario filters but it keeps tasting a bit bitter no matter what I do.
Gave up, brewed with a Moccamaster with standard Melitta filters and it tastes amazing. Hnggg. Should I try faster filters?
Reposted
The wait is finally over, we're happy to announce that the KeebDeck Keyboard and our first product using it, the KeebDeck Basic, are now available for sale from our @lectronz.com store! ⌨️
lectronz.com/stores/solde...
lectronz.com/stores/solde...
November 8, 2025 at 6:05 AM
The wait is finally over, we're happy to announce that the KeebDeck Keyboard and our first product using it, the KeebDeck Basic, are now available for sale from our @lectronz.com store! ⌨️
lectronz.com/stores/solde...
lectronz.com/stores/solde...
Reposted
We are hiring! Both technical and admin, please take a look at our jobs page!
www.yosyshq.com/jobs
#jobs #hire
www.yosyshq.com/jobs
#jobs #hire
Jobs
Employee Profile: Synthesis or Formal Verification Developer at YosysHQ
You might know YosysHQ from our many Open Source EDA Projects. We are the maintainers of Yosys and the accompanying Open Source ...
www.yosyshq.com
September 18, 2025 at 3:28 PM
We are hiring! Both technical and admin, please take a look at our jobs page!
www.yosyshq.com/jobs
#jobs #hire
www.yosyshq.com/jobs
#jobs #hire
Reposted
What happens when one of the main providers that enables #opensource #silicon to thrive...shuts down? Companies like @mith.ro's new wafer.space jump in and offer an even more compelling option. $7K for 1000 chips on the GlobalFoundries GF180MCU process. Learn more:
theamphour.com/703-building...
theamphour.com/703-building...
September 25, 2025 at 6:19 PM
What happens when one of the main providers that enables #opensource #silicon to thrive...shuts down? Companies like @mith.ro's new wafer.space jump in and offer an even more compelling option. $7K for 1000 chips on the GlobalFoundries GF180MCU process. Learn more:
theamphour.com/703-building...
theamphour.com/703-building...
Reposted
PSA: i now consider grebedoc.dev (and the underlying git-pages server software) feature-complete and production-ready, feel free to use it for all your "not supporting Microsoft-nee-GitHub" needs (or whatever other reasons you might have)!
Grebedoc — static site hosting for git forges
grebedoc.dev
September 24, 2025 at 8:14 PM
PSA: i now consider grebedoc.dev (and the underlying git-pages server software) feature-complete and production-ready, feel free to use it for all your "not supporting Microsoft-nee-GitHub" needs (or whatever other reasons you might have)!
Reposted
Disassembling a new iPhone 7 pro Max and using a CNC mill to decap Friggin amazing.
youtu.be/7M60g09HB1M?...
youtu.be/7M60g09HB1M?...
[ASMR] Can iPhone 17 Pro Max be successfully upgraded from 256GB to 2TB?
YouTube video by DirectorFeng
youtu.be
September 19, 2025 at 9:19 PM
Disassembling a new iPhone 7 pro Max and using a CNC mill to decap Friggin amazing.
youtu.be/7M60g09HB1M?...
youtu.be/7M60g09HB1M?...
Reposted
Reposted
Oh hey, STMicro publishing drivers in Rust in the open: github.com/STMicroelect...
GitHub - STMicroelectronics/st-mems-rust-drivers: Platform-independent drivers for STMicroelectronics MEMS motion and environmental sensors, based on Rust Programming Language
Platform-independent drivers for STMicroelectronics MEMS motion and environmental sensors, based on Rust Programming Language - STMicroelectronics/st-mems-rust-drivers
github.com
September 17, 2025 at 1:44 PM
Oh hey, STMicro publishing drivers in Rust in the open: github.com/STMicroelect...
Friend: Do you have an FPGA board I could borrow?
Me: Let me check…
(Hurts a bit that I never did anything cool with the more powerful boards)
Me: Let me check…
(Hurts a bit that I never did anything cool with the more powerful boards)
September 13, 2025 at 12:51 PM
Friend: Do you have an FPGA board I could borrow?
Me: Let me check…
(Hurts a bit that I never did anything cool with the more powerful boards)
Me: Let me check…
(Hurts a bit that I never did anything cool with the more powerful boards)
Started working on my Nintendo DS Lite video capture to HDMI project today after weeks of zero motivation. Huzzah!
Fun fact, the fastest signals here are about 10 times slower than on the N64 (~5.5 MHz vs ~50 IIRC), which reduces the risk for signal integrity problems.
Fun fact, the fastest signals here are about 10 times slower than on the N64 (~5.5 MHz vs ~50 IIRC), which reduces the risk for signal integrity problems.
August 8, 2025 at 10:55 PM
Started working on my Nintendo DS Lite video capture to HDMI project today after weeks of zero motivation. Huzzah!
Fun fact, the fastest signals here are about 10 times slower than on the N64 (~5.5 MHz vs ~50 IIRC), which reduces the risk for signal integrity problems.
Fun fact, the fastest signals here are about 10 times slower than on the N64 (~5.5 MHz vs ~50 IIRC), which reduces the risk for signal integrity problems.
Reposted
Want to help build a crowdsourced microcontroller?
You're invited to design peripherals (UARTs, timers, synths, etc.) for a @riscv.org.web.brid.gy chip that will be fabbed for real!
Take part for free!
tinytapeout.com/competitions...
You're invited to design peripherals (UARTs, timers, synths, etc.) for a @riscv.org.web.brid.gy chip that will be fabbed for real!
Take part for free!
tinytapeout.com/competitions...
July 25, 2025 at 10:57 AM
Want to help build a crowdsourced microcontroller?
You're invited to design peripherals (UARTs, timers, synths, etc.) for a @riscv.org.web.brid.gy chip that will be fabbed for real!
Take part for free!
tinytapeout.com/competitions...
You're invited to design peripherals (UARTs, timers, synths, etc.) for a @riscv.org.web.brid.gy chip that will be fabbed for real!
Take part for free!
tinytapeout.com/competitions...
Reposted
One of my students sent me the latest quantum factorization record, and I have to admit: I’m shook. eprint.iacr.org/2025/1237
Replication of Quantum Factorisation Records with an 8-bit Home Computer, an Abacus, and a Dog
This paper presents implementations that match and, where possible, exceed current quantum factorisation records using a VIC-20 8-bit home computer from 1981, an abacus, and a dog. We hope that this ...
eprint.iacr.org
July 13, 2025 at 2:53 PM
One of my students sent me the latest quantum factorization record, and I have to admit: I’m shook. eprint.iacr.org/2025/1237
Reposted
Yes, a file full of zero bits transfers faster over USB2.0 than a file full of one bits.
I've known this forever but it still feels ridiculous when you actually test it and it's true!
USB truly is cursed.
I've known this forever but it still feels ridiculous when you actually test it and it's true!
USB truly is cursed.
July 8, 2025 at 8:17 AM
Yes, a file full of zero bits transfers faster over USB2.0 than a file full of one bits.
I've known this forever but it still feels ridiculous when you actually test it and it's true!
USB truly is cursed.
I've known this forever but it still feels ridiculous when you actually test it and it's true!
USB truly is cursed.
Reposted
[Please share with people outside of cybersec]
Do you have a horror story when you had to deal with cybersecurity companies / people? This is your chance to vent! → forms.gle/9aX24HrfnEQm...
I'm running an anonymous survey to listen to stories and look into the disconnect we sometimes have.
Do you have a horror story when you had to deal with cybersecurity companies / people? This is your chance to vent! → forms.gle/9aX24HrfnEQm...
I'm running an anonymous survey to listen to stories and look into the disconnect we sometimes have.
Frustration with cybersecurity people and companies
This anonymous survey if for people who are NOT working in cybersecurity and who had to contract people / buy services / buy products from companies in cybersecurity / use cybersecurity products / etc...
forms.gle
July 5, 2025 at 9:58 AM
[Please share with people outside of cybersec]
Do you have a horror story when you had to deal with cybersecurity companies / people? This is your chance to vent! → forms.gle/9aX24HrfnEQm...
I'm running an anonymous survey to listen to stories and look into the disconnect we sometimes have.
Do you have a horror story when you had to deal with cybersecurity companies / people? This is your chance to vent! → forms.gle/9aX24HrfnEQm...
I'm running an anonymous survey to listen to stories and look into the disconnect we sometimes have.
Glasgow is such a great tool for interacting with hardware. Been using it a lot, and it’s both easy and fun to build custom applets for it.
are you a platform/embedded developer?
do you need to interact with hardware in a semi-custom manner?
would you like to suffer a lot less doing it?
if so, #GlasgowInterfaceExplorer might be for you. the code below is all you need to build a custom testbench:
do you need to interact with hardware in a semi-custom manner?
would you like to suffer a lot less doing it?
if so, #GlasgowInterfaceExplorer might be for you. the code below is all you need to build a custom testbench:
June 29, 2025 at 2:15 PM
Glasgow is such a great tool for interacting with hardware. Been using it a lot, and it’s both easy and fun to build custom applets for it.
Open source DisplayPort implementations for FPGAs - what's the state of this in 2025?
For me, starting out with a single line, at the lowest speed would still be cool.
TX is of course interesting, but RX and protocol analyzers would also be interesting.
For me, starting out with a single line, at the lowest speed would still be cool.
TX is of course interesting, but RX and protocol analyzers would also be interesting.
June 18, 2025 at 7:24 PM
Open source DisplayPort implementations for FPGAs - what's the state of this in 2025?
For me, starting out with a single line, at the lowest speed would still be cool.
TX is of course interesting, but RX and protocol analyzers would also be interesting.
For me, starting out with a single line, at the lowest speed would still be cool.
TX is of course interesting, but RX and protocol analyzers would also be interesting.
Reposted
Does anyone have recommendations for any high quality discussion groups or communities for defensive security? Security engineering, detection engineering, DFIR, etc? Feels like there's an abundance of offense but not so much other stuff.
June 11, 2025 at 8:44 PM
Does anyone have recommendations for any high quality discussion groups or communities for defensive security? Security engineering, detection engineering, DFIR, etc? Feels like there's an abundance of offense but not so much other stuff.
Funky, no google results for NINTENDO2175. My hash is 5f855fdf258261af2a0c92d5e01e4a179e57d91acf0c3a0c0773407bd987ad8a. Yours too or do they differ?
June 11, 2025 at 6:29 PM
Funky, no google results for NINTENDO2175. My hash is 5f855fdf258261af2a0c92d5e01e4a179e57d91acf0c3a0c0773407bd987ad8a. Yours too or do they differ?
Reposted
I've gone a bit off the deep end and added more columns and functionality.
Anyway, here's 49 Pico form-factor compatible boards compared in a table. PRs welcome.
arturo182.github.io/pico-compati...
Anyway, here's 49 Pico form-factor compatible boards compared in a table. PRs welcome.
arturo182.github.io/pico-compati...
June 5, 2025 at 11:57 PM
I've gone a bit off the deep end and added more columns and functionality.
Anyway, here's 49 Pico form-factor compatible boards compared in a table. PRs welcome.
arturo182.github.io/pico-compati...
Anyway, here's 49 Pico form-factor compatible boards compared in a table. PRs welcome.
arturo182.github.io/pico-compati...
Reposted
Had completely missed that Infineon released new FX10/FX20 chips, making it accessible to anyone to get 10 or 20 Gbps USB for custom projects.
So, what are we building this time?
www.infineon.com/cms/en/produ...
So, what are we building this time?
www.infineon.com/cms/en/produ...
EZ-USB™ FX - Infineon Technologies
Promopages
www.infineon.com
June 4, 2025 at 5:48 AM
Had completely missed that Infineon released new FX10/FX20 chips, making it accessible to anyone to get 10 or 20 Gbps USB for custom projects.
So, what are we building this time?
www.infineon.com/cms/en/produ...
So, what are we building this time?
www.infineon.com/cms/en/produ...
Reposted
Take this quiz, for example stefansf.de/c-quiz/
I think you'll find at least some of the answers surprising (I know I do, and I've seen it before!).
I think you'll find at least some of the answers surprising (I know I do, and I've seen it before!).
May 7, 2025 at 11:43 PM
Take this quiz, for example stefansf.de/c-quiz/
I think you'll find at least some of the answers surprising (I know I do, and I've seen it before!).
I think you'll find at least some of the answers surprising (I know I do, and I've seen it before!).
Reposted
Intel launched the Pentium processor in 1993. Unfortunately, dividing sometimes gave a slightly wrong answer, the famous FDIV bug. Replacing the faulty chips cost Intel $475 million. I reverse-engineered the circuitry and can explain the bug. 1/9
December 6, 2024 at 4:48 PM
Intel launched the Pentium processor in 1993. Unfortunately, dividing sometimes gave a slightly wrong answer, the famous FDIV bug. Replacing the faulty chips cost Intel $475 million. I reverse-engineered the circuitry and can explain the bug. 1/9
What’s your favorite tool or method to find ROP gadgets in MIPS binaries?
November 28, 2024 at 3:32 AM
What’s your favorite tool or method to find ROP gadgets in MIPS binaries?
Oops I bricked my device!
After poking around and possibly feeding some back-currents in the wrong place, I get the following behavior:
UART should run at 115200 but actually runs at 184615 baud, and gets stuck after the bootloader.
What would you investigate first? Sounds like a clock-issue.
After poking around and possibly feeding some back-currents in the wrong place, I get the following behavior:
UART should run at 115200 but actually runs at 184615 baud, and gets stuck after the bootloader.
What would you investigate first? Sounds like a clock-issue.
November 20, 2024 at 1:28 PM
Oops I bricked my device!
After poking around and possibly feeding some back-currents in the wrong place, I get the following behavior:
UART should run at 115200 but actually runs at 184615 baud, and gets stuck after the bootloader.
What would you investigate first? Sounds like a clock-issue.
After poking around and possibly feeding some back-currents in the wrong place, I get the following behavior:
UART should run at 115200 but actually runs at 184615 baud, and gets stuck after the bootloader.
What would you investigate first? Sounds like a clock-issue.