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SERGIO SÁNCHEZ

v0.4 · Oct 7, 2025 · San Francisco Bay Area

Uses

A living document of the tools, technologies, and methodologies that power my work. I believe in choosing tools that are cost-effective, transparent, and composable— avoiding vendor lock-in and preferring solutions that teams can understand and maintain.

Daily Essentials

  • MonologueAI-native voice-to-text by Every
  • Claude CodeAI development environment
  • LexAI-powered writing assistant
  • ChatGPT Voice ModeConversational AI assistant
  • Claude Opus 4.1Advanced reasoning partner

Data & AI Infrastructure

Data Warehousing & Processing

  • SnowflakePrimary data warehouse with Snowpark for Python UDFs
  • dbtTransformation layer with version control and testing
  • Apache SparkDistributed processing when scale demands it
  • Apache AirflowOrchestration with observable DAGs
  • PostgreSQLTransactional data and smaller analytical workloads
  • SQLiteHonestly solves 90% of problems for free

AI/ML Operations

  • Pythonpandas, spaCy, scikit-learn, PyTorch for models
  • Snowflake CortexLLM functions for classification at scale
  • AI APIsOpenAI, Anthropic, Google for reasoning tasks
  • WhisperOn-device speech recognition
  • PicovoiceOn-device voice AI for wake words and transcription
  • LangChainRAG patterns and agent workflows
  • DSPyProgramming language models, not prompting them

Observability & Monitoring

  • Arize PhoenixLLM evaluations and monitoring
  • StreamlitInternal tools and custom dashboards
  • ObservableInteractive data visualizations
  • SigmaBusiness intelligence dashboards

Web Development

Frontend

  • React/Next.jsPrimary framework for web applications
  • TypeScriptType safety and better DX
  • Tailwind CSSUtility-first styling
  • DenoModern JavaScript runtime
  • React NativeCross-platform mobile development

Backend & APIs

  • Node.jsJavaScript runtime for servers
  • FastAPIPython APIs with automatic documentation
  • SupabasePostgreSQL + Auth + Realtime + Edge Functions
  • Cloudflare WorkersEdge computing for low latency
  • VercelDeployment and hosting

Hardware & IoT

Microcontrollers & Sensors

  • ESP32WiFi-enabled microcontroller for IoT projects
  • Raspberry PiFull Pi family from Pico to Pi 5 for edge AI
  • VL53L0XTime-of-flight distance sensors
  • PiSugarBattery management for portable Pi projects

Firmware & Protocols

  • MicroPythonPython for microcontrollers
  • MQTTLightweight messaging for IoT

Development Environment

Editor & Terminal

  • VS CodePrimary editor with vim keybindings
  • GhosttyFast, native terminal emulator
  • WarpModern terminal with AI features
  • CursorAI-powered code editor for exploration
  • Jupyter LabInteractive data analysis

Version Control & CI/CD

  • Git/GitHubSource control and collaboration
  • GitHub ActionsAutomation and CI/CD
  • pre-commitCode quality hooks
  • uvPython toolchain and environment manager
  • DockerContainerization for consistency

AI Development

  • ClaudeCode generation and reasoning partner
  • GitHub CopilotInline code suggestions
  • Weights & BiasesML experiment tracking
  • Hugging FaceTransformers, Datasets, Gradio, Spaces

Content & Community

Writing & Publishing

  • SubstackNewsletter platform for tacosdedatos and tresveces
  • ObsidianKnowledge management and note-taking
  • LexAI-powered writing assistant
  • ExcalidrawTechnical diagrams and sketches

Community Tools

  • DiscordCommunity discussions
  • ForemCommunity forum platform

Design & Methodology

Design Principles

  • "Joyful Brutalist Minimalism"Form follows function, but joy is also function
  • System fontsPerformance over custom typography
  • Accessibility-firstWCAG 2.1 AA compliance
  • Progressive enhancementWorks without JavaScript

Development Philosophy

  • Diagnose with data, treat with designEvidence-driven decisions
  • AI-native developmentAutomate creation, supervise execution
  • Self-documenting systemsCode that updates its own changelog
  • Ship smallIncremental, reversible changes
  • Cost awarenessEfficiency as a feature
  • ObservabilityMeasure everything that matters

Last updated: October 2025

This page is inspired by uses.tech, a community of developers sharing their setups.