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Services · productized

Productized builds. Shipped live. From $490.

Fixed-price, fixed-timeline builds — live on your stack in days, not months. Start with a $490 Landing in a Day, a $990 AI Pilot, a $1,990 WhatsApp Bot, or the $6,500 Sprint. Live or refunded.

Deeper engagements — Multi-Workflow Programs, retainers, Fractional CTO, and selective Bitcoin work — further down the page.

Deeper · when the work compounds

Multi-week engagements.

Three shapes of deeper work — AI automation programs and retainers, embedded Fractional CTO, and Bitcoin engineering when the on-chain ambition is real.

01
Clauden8nSaaSFixed-price

AI Automation · programs & retainers

When one Sprint isn't enough — multi-workflow programs and ongoing automation work.

For teams shipping multiple workflows per quarter. Multi-Workflow Programs from $18,000 (8–12 weeks, three sequenced workflows). Retainers from $3,500/month. The Pilot and Sprint from the productized ladder above are the on-ramp; this is where the compounding ROI lives.

Agentic workflows, research and classification systems, support triage, lead enrichment, churn detection. Built on n8n + Claude with the same shipping discipline that put Pizza Ninjas on Sotheby's and Pizza Pets past 1M on-chain interactions. Start small from the ladder above; graduate into a program when the work earns its keep.

What this looks like

  • Multi-Workflow Program — three workflows sequenced for compounding ROI
  • Retainer — continuous build and tune across the automation stack
  • 60-day post-launch support on program builds
  • Direct access — no PM layer, no handoffs
Read the engagement
02
StrategyArchitectureLeadership

Fractional CTO

Senior technical leadership without the full-time hire.

For pre-Series A and early-stage startups that need a real architect — not an agency, not a contractor, not a wrong early hire.

Embedded 1–2 days a week. I own architecture, key decisions, hiring reviews, and shipping velocity. You talk directly to me — nothing gets translated through a project manager. I've raised capital for products and I think about yours the way investors and users do.

What this looks like

  • Greenfield architecture, stack decisions, hiring reviews
  • Direct work on critical code paths — not just diagrams
  • Weekly syncs with the founding team
  • Fundraising-round technical narrative
Read the engagement
03
BitcoinOrdinalsRunesSelectively

Bitcoin & Web3 Engineering

Proof of work — the shipping discipline that now powers the AI offers.

The case studies that sell the AI work. Pizza Ninjas (Sotheby's blue-chip Ordinals), Pizza Pets (first on-chain pets on Bitcoin, 1M+ interactions), Project Spartacus (WikiLeaks archive on Bitcoin), OrdinalsBot (Senior Frontend).

Still take on senior Bitcoin engagements for teams with real on-chain ambition — Ordinals, Runes, BRC-20, PSBT work, inscription pipelines. Most of the revenue is now AI automation, but the web3 credentials are what make clients trust me with production AI in the first place.

What this looks like

  • Senior dev on Ordinals, Runes, BRC-20 inscriptions
  • BTC-native product architecture, tokenomics, launch coordination
  • Inscription pipelines and on-chain coordination
  • Advisory for post-2021 web3 teams pivoting
Read the engagement

For teams

Bring AI to your whole team in two hours.

Private workshop booked for your team only — at your office, cowork, offsite, or remote. Hands-on n8n + Claude tailored to your actual backlog. Best for teams of 5–15.

See upcoming sessions

By the numbers

$3M+

raised across on-chain launches

1,500+ ETH

all-time Ethereum secondary volume

1M+

on-chain game interactions · Pizza Pets

Engagement · three shapes

How we work.

Same person shipping, regardless of which one fits. Most clients start with a Sprint and migrate if the work compounds.

  1. 01

    Strategic Sprint

    A focused 2-4 week engagement to solve a specific problem. Audit, strategy, deliverables — then you run with it. Best for teams who need clarity fast.

  2. 02

    Technical Co-Architect

    Embedded part-time over months, building alongside your team. I take ownership of architecture, key decisions, and shipping velocity. Best for startups without a CTO.

  3. 03

    Advisory

    Ongoing strategic guidance on a retainer basis. Regular calls, async availability, and the confidence of having a technical partner on speed dial. Best for founders who need a sounding board.

David Dacruz — senior Bitcoin and AI engineer

David Dacruz

Replies in ~24h

Next step

Not sure which model fits?

Every project starts with a conversation. Tell me what you're building and I'll tell you honestly what I think you need.

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