Room · Atelier
Principal Product Designer & Systems Architect · CHB
Builders · pink ink on draft paper
Kyle’s working corpus — privacy-by-design, product architecture, and shipping systems in his own voice.
Bio
Hands-on systems designer bridging UX, software, and enterprise strategy — zero-to-one products, design systems, and agentic AI with memory and privacy.
This Pipe is my working corpus: Substack (I write here now, not X), Knowledge Center talks, and the craft behind Pipes, Semi, Hash, Greater, and Workshop.
Semi is trained on who I am and what I stand for — grounded answers from this room, not a generic chatbot.
Privacy-by-design
Privacy-by-design is non-negotiable. Portfolios that dump process are data-exfiltration honeypots. Client IP stays gated; public work here is independently built and safe to share. Default private; sourceUrl when we publish.
Open pipe\privacy →Selected experience
Colon Hyphen Bracket, LLC
Founder & Builder · Dec 2018–present — PWAs, agentic models, HFT tooling, corporate identity
Custodia Bank
Lead Product Designer · 2022–2024 — first design hire; rebrand; Bitcoin custody & fiat banking UX
PredictiveUX
Senior UX/UI Architect · Walmart enterprise search; RecoverX clinical decision support
Optum / UnitedHealth Group
Senior Product Experience Designer — Apple Health advocacy; flagship patient apps
Writing
What I care about
Agentic AI with persistent memory
Privacy-by-design & sovereign tech
Product architecture (not buildings)
Bitcoin as settlement / hard money
Curator Economy — ad-free information homes
FOSS for citizens (Marigold, Greater)
Color, type, and grid as craft (Albers / Vignelli)
Design systems that feel human
GitHub
marigold
FOSS for citizens & states — voter records, election regs, local insights
greater-than
Sovereign-by-default support bots — browser-local WebGPU inference
pipes
This product — ad-free curated Pipes & Curator home
chb-corporate-site
CHB / :-] public-facing architecture
antigravity-skills
Agent skills for Google Antigravity
portfolio
TypeScript portfolio — hire.colonhyphenbracket.pink lineage
Studio & life
Rooms I hold & contribute to
Use my tools
Personal AI trained on this corpus
Curator Economy — domain knowledge rooms
FOSS chat against Pipes
Persistent memory across apps
From my library
@cubby / The Pipes Podcast
# The Pipes Podcast **Episode Overview:** From Blind Willie McTell to Son House and Fred McDowell: The Masterclass of Delta and Piedmont Blues **Curated By:** @cubby [podcast episode] Listen to the audio dispatch: /cubby/podcast/the-pipes-podcast ### Spoken Transcript **Semi (Nova):** Welcome to The Pipes Podcast. Today's episode is brought to you by @cubby—and we are diving straight into the blistering, electrifying world of early American blues! Greater, are you ready to talk about some serious acoustic wizardry? **Greater (Andrew):** Oh, 100%! Y…
@cubby / The Pipes Podcast
The Pipes Podcast@cubby / The Pipes Podcast
The Pipes Podcast@cubby / The Pipes Podcast
The Epistemic Defense Against Centralized AIcubby
Cubby XSovereign knowledge graph: specialized sub-pipes and adjacent domains informing pipe\cubby
**Episode Overview:** Deconstructing Bitcoin Sovereignty, Privacy, and Physical Resilience
**Curated By:** @cubby
[podcast episode] Listen to the audio dispatch: /podcasts/podcast-1790457729926-ebbd8a6158f3.mp3
**Semi (Nova):** Welcome to The Pipes Podcast. Today's episode is brought to you by @cubby, and we are diving deep into the absolute bedrock of monetary history and sovereign wealth preservation.
**Andrew (Andrew):** Right, and we are looking at this through the lens of Lawrence Lepard's research, starting with Voltaire's timeless warning that all fiat currency eventually returns to zero.
**Semi (Nova):** Exactly. Governments just cannot resist the temptation to debase money once it is separated from physical production, making scarce bearer assets our only real escape hatch.
**Andrew (Andrew):** Which brings us straight to the friction point of how you actually get your hands on Bitcoin, because where you buy it changes everything about your privacy.
**Semi (Nova):** On one side, you have dedicated KYC brokers like River Financial, Strike, and Swan Bitcoin, which give you smooth onboarding, zero fees on DCA, and institutional security.
**Andrew (Andrew):** Hold on a second though, because those coins are forever tied to your real-world identity in chain-analysis databases, right?
**Semi (Nova):** That is the ultimate trade-off. If you want sovereign fungibility and zero cluster linkage to your identity, you have to look at non-KYC peer-to-peer channels.
**Andrew (Andrew):** Like Bisq, RoboSats, or Peach Bitcoin, where you can trade using Tor routing and lightning hold invoices without handing over your personal data.
**Semi (Nova):** Precisely. But acquiring sovereign money is only half the battle; you also have to survive physical disasters and threats to your seed phrase.
**Andrew (Andrew):** And paper backups just do not cut it when faced with house fires or floods. That is why people use grade 304 or 316 stainless steel plates.
**Semi (Nova):** And remember, you only need to punch the first four letters of each BIP 39 word because the dictionary is entirely prefix-free.
**Andrew (Andrew):** That is brilliant engineering. Plus, you layer on the 25th word passphrase so a thief who finds your metal plate only gets access to a decoy duress wallet.
**Semi (Nova):** Combine that with stateless devices like SeedSigner and collaborative multisig setups, and you have built an unbreakable fortress for your generational wealth.
**Andrew (Andrew):** Stay sovereign out there, keep your keys secure, and we will see you next time on The Pipes Podcast.