@sarcasticadmin

Engineer, tech-team member of @socallinuxexpo, #nixpkgs maintainer, #FreeBSD user, and enjoy all things Open Source KM6LBU

 San Diego, CA
sarcasticadmin.com
Joined January 2018
  • Tweets657
  • Following1.3K
  • Followers270
Rob Hernandez retweeted
Domen Kožar
@domenkozarOct 19
relocatable binaries on Linux built via Nix supported in kernel 7.3, brought to you by @fmzakari at tacosprint.org
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Rob Hernandez retweeted
Pauly Shore
@PaulyShoreOct 8
Wheezin the juice with my friend Brendan. Whhoooaa throwback, doodzzz
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Rob Hernandez retweeted
MIT CSAIL
@MIT_CSAILSep 28
"Controlling complexity is the essence of computer programming." — Brian Kernighan
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Rob Hernandez retweeted
mjones (@numinit)@_numinitSep 25
"Community-based solutions need contributions of all kinds so everyone can get in where they fit in. Pick the spot that suits your abilities and plug in." (from the @defcon 34 theme) May contain at least one @hintjens quote too 😉
Nix Vegas@NixVegasSep 25
Recovering our agency at @defcon 34: nix.vegas/blog/2026/retrospe…
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Rob Hernandez retweeted
Bryan Cantrill
@bcantrillSep 21
What Sun got wrong bcantrill.dtrace.org/2026/09…

What Sun got wrong

We have the whole Oxide team coming to Emeryville this week for our annual OxCon meetup. For a remote company, an in-person meeting is uniquely energizing, and in preparation for that, we made some...

bcantrill.dtrace.org
Bryan Cantrill
@bcantrillSep 18
New @oxidecomputer swag just arrived, and... hot damn
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Rob Hernandez retweeted
Bryan Cantrill
@bcantrillSep 18
New @oxidecomputer swag just arrived, and... hot damn
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Rob Hernandez retweeted
Bryan Cantrill
@bcantrillSep 13
The contagion of fear bcantrill.dtrace.org/2026/09…

The contagion of fear

I have a difficult confession to make — a shameful incident that I have never spoken of, even to those closest to me. Late one night in my first year at university and having found computer science...

bcantrill.dtrace.org
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Rob Hernandez retweeted
Nix Vegas@NixVegasSep 7
Nix Vegas 2026 and the First Nix CTF nix.vegas/blog/2026/ctf/
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Rob Hernandez retweeted
Nix Vegas@NixVegasSep 1
Bigger, better, faster: Introducing the Nix Badge 2.0 (sponsored by @PCBWayOfficial) nix.vegas/blog/2026/badge/
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Rob Hernandez retweeted
Shahar "Dawn" Or
@mightyiamSep 1
If you didn't know, you're about to that August 6, 7, 8, 9 was DEF CON 34 and Nixers were definitely present. Join Alex, Chris, Morgan, Jared, Dan, Tristan and I for a recounting of Nix Vegas, the official Nix space at the latest DEF CON. fulltimenix.com/episodes/nix…
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Rob Hernandez retweeted
Earth
@earthcuratedAug 20
We finally figured out why 2,000-year-old Roman concrete survives in seawater while our modern concrete crumbles in decades. The Romans used "hot mixing" with lime clasts. When the concrete cracks and rainwater seeps in, it dissolves the lime, recrystallizes it into the cracks, and literally heals itself. We need to start building like this again.
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Rob Hernandez retweeted
Farid Zakaria
@fmzakariAug 16
"When you constrain a problem, beauty emerges." "If two build systems both promise you a hermetic, reproducible closure, then there must be a transformation from one to the other and back. Otherwise one of them is lying." "I proposed the Linux kernel for one small feature, what I got back was a full VM" All the talks from #DEFCON34 and #NixVegas are up ! I captured mine with a small summary: * Relocatable Binaries * Guix by Nix * How to piss off your Nix friends fzakaria.com/2026/08/16/defc… #nix #nixos #nixpkgs

DEFCON34 wrap-up

I recently came back from DEFCON34 and the nix.vegas community. The talks I gave are now online if you are interested in watching them. 🙌

fzakaria.com
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Rob Hernandez retweeted
mjones (@numinit)@_numinitAug 11
The @NixVegas team is going to do a few posts debriefing about the different parts of this year's event once we get a little post-DEF CON sleep. Badge, CTF, and network were all extremely unique engineering challenges with Nix at the forefront. Amazing teamwork from everyone
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Rob Hernandez retweeted
Nix Vegas@NixVegasAug 4
Choose DEF CON. Choose agency. Choose the NixCTF. Choose getting your PR merged, and the Nix Party. Choose pwning Hydra. Choose Nix Vegas.
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Rob Hernandez retweeted
mjones (@numinit)@_numinitJul 29
We have like seven TP-Link powerline ethernet adapters this year so people can PXE boot to play Bad Apple or run NixOS from anywhere in the LVCC during @defcon, lmao
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These parking signs - as seen in @santamonicacity California - should be illegal.
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rich url previews - the feature no one asked for #enshitification
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Rob Hernandez retweeted
Nix Vegas@NixVegasJul 16
Three more hours, get your CFP submissions in! cfp.nix.vegas/2026

Nix Vegas @ DEF CON 34

Schedule, talks and talk submissions for Nix Vegas @ DEF CON 34

cfp.nix.vegas
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Rob Hernandez retweeted
mjones (@numinit)@_numinitJul 15
Starting the @NixVegas cache mirror on our core router. We've got a 20Gbps trunk for a thing. We have two SATA SSDs with 32Gbps L2ARC in front, TBD if we have room for a mirror or stripe and if raw NARs from cache.nixos.org or unpack/ZFS dedup are smaller Place your bets
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Rob Hernandez retweeted
Nix Vegas@NixVegasJul 13
📢 Three days to submit your CFP! Closes July 15 @ 23:59 PDT! cfp.nix.vegas/2026/

Nix Vegas @ DEF CON 34

Schedule, talks and talk submissions for Nix Vegas @ DEF CON 34

cfp.nix.vegas
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