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Posts by Roger Peppe

Thought I'd give it a go after this recommendation; it turns I read it back in 2019, but can't remember the first thing about it! Guess I'll have to re-read before deciding if I wanna go on with the rest...

5 days ago 1 0 0 0

It turns out pretty hard to escape Space Opera mode!

1 week ago 1 0 0 0

I got definite Laundry Files vibes from it. Not what I was expecting, but I enjoyed it!

1 week ago 1 0 0 0
An area of lawn. A few blades of grass are visible but mostly it's moss. A pair of bare feet are visible, sinking in comfortably.

An area of lawn. A few blades of grass are visible but mostly it's moss. A pair of bare feet are visible, sinking in comfortably.

My lawn seems to have responded to your exhortation.

1 week ago 4 1 0 0
Issues · cue-labs/registry Contribute to cue-labs/registry development by creating an account on GitHub.

Also, feel free to report issues with schemas in the CUE Central Registry at github.com/cue-labs/reg...

1 week ago 1 0 0 0
CUE Central Registry

Glad to hear you're trying it out! Which specific schema are you referring to here? The perses schemas at registry.cue.works/docs/github.... are published by the Perses project itself, and I'm sure they'd like to know of any issues with them.

1 week ago 0 0 1 0

At least it has the advantage of being a trivial format to convert to for anyone!

2 weeks ago 1 0 1 0

That my friend is a fucking brilliant recommendation. Had not heard of Deadloch before now and now I'm continually belly laughing and involuntarily cussing as I make my way through S01E01, in delicious anticipation of plenty more entertainment to come.

2 weeks ago 2 0 0 0

A friend (@jon.dag.dev) showed me a fun use case: he pointed an AI at a screenshot (only) of a profile and it did some really nice optimisations to some unfamiliar-to-him code based on that. I wouldn't have thought to do that!

2 weeks ago 3 0 1 1
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I'm officially looking around, if anybody needs a Go software engineer with a very strong background in web security lmk.

I also know a fair share of frontend dev and was a SWE/SE for Google and Microsoft.

I'm looking for security-sensitive dev projects and security reviews.

3 weeks ago 12 7 1 1

It's stopped raining now! :)

3 weeks ago 1 0 1 0

I'm here! Come by for a chat.

3 weeks ago 7 0 0 0

Might see you there!

4 weeks ago 1 0 1 0

So often I'll write a prompt that could easily be interpreted as "implement this" when actually I'm wanting a bit of back-and-forth before diving in. I love that in Claude I can start the prompt and then remember I want to plan - Shift-Tab immediately changes to read-only plan mode, super useful!

1 month ago 1 0 0 0

5/
Note: there's more to come — in particular some way to automatically include injected values without building a Go binary, but these should provide a foundation for that.

1 month ago 1 0 0 0
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Proposal: Tagged String Literals · cue-lang cue · Discussion #4295 📋 Proposal Details: File: designs/language/4295-tagged-string-literals.md Status: Draft This proposal introduces tagged string literals to the CUE language, enabling context-aware string interpolat...

4/
Proposal: Tagged String Literals
github.com/cue-lang/cue...

Context-aware string interpolation: tag functions control escaping of interpolated values, preventing injection vulnerabilities in shell, SQL, HTML, etc.
#cuelang

1 month ago 1 0 1 0
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Proposal: CUE Value Injection · cue-lang cue · Discussion #4294 📋 Proposal Details: File: designs/4294-value-injection.md Status: Draft This proposal introduces a mechanism for Go programs to supply CUE values to specific locations in CUE source code through @i...

3/ Proposal: CUE Value Injection
github.com/cue-lang/cue...

A mechanism for Go programs to supply values to CUE source via `@inject` attributes, letting CUE packages declare external dependencies explicitly.
#cuelang

1 month ago 1 0 1 0
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Proposal: User-Provided Functions and Validators · cue-lang cue · Discussion #4293 📋 Proposal Details: File: designs/4293-user-functions-and-validators.md Status: Draft This proposal introduces a Go API for wrapping ordinary Go functions as CUE-callable functions and validators. ...

2/ Proposal: User-Provided Functions and Validators
github.com/cue-lang/cue...

A simple Go API for wrapping Go functions as CUE-callable functions and validators — extending CUE's evaluation with custom logic.
#cuelang

1 month ago 2 0 1 0

1/ I've just published three orthogonal but related CUE proposals. #cuelang 🧵

1 month ago 4 1 1 0

What's #NWBchallenge ? Google is of no help!

1 month ago 1 0 1 0
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Glassworm Returns: Invisible Unicode Malware Found in 150+ GitHub Repositories The Glassworm supply chain attack is back. Researchers uncovered malware hidden in invisible Unicode characters across 150+ GitHub repositories, plus npm packages and VS Code extensions.

Are you still hiding if no one is looking?

People aren't reading the code at all—they'd see the weird decoder+eval—and machines can see that and also the private use code points.

Also, it's been public since May 2025 and GitHub/NPM/Microsoft have done nothing.

www.aikido.dev/blog/glasswo...

1 month ago 39 14 1 1

Be careful you don't accidentally read this book

1 month ago 0 1 0 0

A great example of how the Google #golang team put thousands of lines of ultra-technical code in service of an incredibly easy-to-use and useful tool. If you ever deprecate code, you really should know about the go:inline directive!

1 month ago 38 10 0 0

I like the terminology and overall framework here, nice work. Minor gripe: I wish the axioms were line-wrapped. I had to copy and paste to another view to read them.

1 month ago 0 0 0 0

Me too!

1 month ago 3 0 0 0

they didn't seem to be comparing against encoding/json/v2 - I have a feeling that be possible to configure to be much stricter out of the box. Joe Tsai might have good input here.

1 month ago 2 0 0 0
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sf hard enough to move the markets. is that a first?

1 month ago 0 0 0 0

tech debt never gets cleared. we'll have to declare bankruptcy.

1 month ago 0 0 1 0

5 authors I've read at least 5 books by:

E J Swift
Adam Roberts
Alasdair Reynolds
Christopher Priest
Adrian Tchaikovsky

1 month ago 1 0 0 1

I just read that text and the rhythm of the prose instantly says "AI slop" to me and I ignore it. Sorry.

2 months ago 1 0 0 0