Josh Lospinoso
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The Sentence Changed the Room
The room in this week’s Field Note is ordinary: melted ice, lemon peel, tired glasses, a table doing what tables do after a gathering has technically…
Aug 9
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Josh Lospinoso
The Supports That Leave a Scar
I was cleaning up a 3D print and hesitated with the cutters.
Aug 2
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Josh Lospinoso
1
July 2026
The Scorecard Was Not the Candidate
An interview scorecard can look more complete than the interview felt.
Jul 26
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Josh Lospinoso
ARM64 Is Not Just x64 With More Registers
Here is a small AArch64 bug:
Jul 25
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Josh Lospinoso
When a Decode Looks More Certain Than It Is
A field table can make partial evidence look official. The useful move is learning where the artifact stops and the stronger story begins.
Jul 24
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Josh Lospinoso
After the Thing Stands
The room at the center of this essay is not a clean design object.
Jul 23
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Josh Lospinoso
The Workshop Has Changed
The object in this essay is small: an AGENTS.md file open beside a red test runner and a planning note.
Jul 22
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Josh Lospinoso
C Constructs That Still Don't Work in C++ - and a Few That Changed
C++ is not a superset of C.
Jul 21
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Josh Lospinoso
The ABI Is the Boundary
This Rust declaration is not just convenient syntax:
Jul 20
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Josh Lospinoso
The Pew Does Not Argue Back
A seventeen-year-old at Fort Benning can find the chapel pew before he finds doctrine.
Jul 19
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Josh Lospinoso
It Works Until the Stack Walker Arrives
A hand-written function, JIT stub, or trampoline can pass the easiest test: it returns to the caller with the right value.
Jul 18
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Josh Lospinoso
What the Test Set Was Allowed to Change
A held-out dataset becomes development evidence when its result is used to revise the procedure.
Jul 17
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Josh Lospinoso
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