DSL4 DigitalPlatform / Sign in ↗ES
ENGINEERING

From the model
to the browser.

Our infrastructure follows the needs of the product. Here is where the engineering lives.

01

Autonomous edge editorial engine

An 11-stage autonomous pipeline on Cloudflare Workers, Workers AI and R2. Scrapes sources, verifies legal rights, extracts quote provenance, generates multi-perspective analysis and coordinates images without server management.

Cloudflare Workers · Workers AI · R2 · Observability · Python · React
DSL4 Newsroom ↗
02

AI speech & zero-egress delivery

Qwen3 GPU workers render neural speech. A shared R2 cache prevents duplicate renders; Cloudflare Pages Functions coordinate delivery and D1 spend metering. Spaced repetition remains entirely browser-local.

Python · Qwen3 · GPU inference · Cloudflare R2 · D1 · SM-2
Versos ↗
03

Binary format recovery without upload

Binary parsing and partial DEFLATE decompression recover text from damaged files directly in the browser. A strict CSP connect-src 'none' forbids network transmission, verified by textutil and SQLite test oracles.

JavaScript · ZIP local headers · Partial DEFLATE · SQLite B-tree
Mendery ↗
04

Serverless commerce in a single Worker

A dependency-free Cloudflare Worker handles Stripe webhooks, deterministic re-derivable license generation, and HMAC-signed expiring download URLs from KV with a full mock-verification test harness.

Cloudflare Workers · KV · HMAC · WebCrypto · Stripe
Papertill ↗
05

Verifiable randomness & simulation

An interactive 50,000-ball 3D WebGL sphere paired with deterministic physics and public drand randomness beacons. Agent interfaces (MCP, REST, CLI) allow autonomous bots to participate as first-class players.

TypeScript · WebGL · Rapier3D WASM · drand · MCP server
BotBalls ↗
06

Scholarly integrity & local agent tooling

Direct browser reconciliation against six scholarly registries (250M+ records) with epistemic-honesty error chains. Bundles a keyless local MCP server so AI agents can verify citations in their own workflows.

Cloudflare Workers assets · Local MCP server · Registry APIs · MIT
RefExists ↗
07

Gazette monitoring & rotated table parsing

Scheduled ingestion of Spain's official gazettes (BOE, BOC, REGCON). Parses rotated salary tables (tabla_girada) and applies deterministic CNAE classification with zero LLM calls in the hot path.

Cloudflare Workers · Cloudflare D1 · Cron Triggers · WebCrypto HMAC
ConvenioAlert ↗
08

Public grant discovery & Workers AI

Daily ingestion of Spain's national BDNS open API with deterministic regional classification and a hybrid 6-provider translation failover chain featuring a native Cloudflare Workers AI adapter.

Cloudflare Workers · Cloudflare D1 · Workers AI · Cron Reminders
Subvenio ↗
09

Municipal registry reconciliation at scale

Data engineering moat reconciling all 8,132 Spanish municipalities to official INE codes. Unattended quarterly crons parse gazettes and serve high-throughput JSON holiday data directly from D1.

Cloudflare Workers · Cloudflare D1 · JSON API · INE registry
FestivosAPI ↗
10

Tamper-evident evidence & case packs

Cryptographic content hashing (SHA-256) establishes immutable chain of custody for multi-source records. Derives chronological event threads and compiles auditable case packs via zero-retention edge workers.

Python · TypeScript · SHA-256 provenance · Edge workers · Local AI
ThreadCase ↗