Independent studio & publisher · software and design
acidminded
Free, loud, experimental tools for creative minds.
Acidminded designs and builds software end to end: an AI creative studio, a desktop app for your time, and interfaces that refuse to sit still.
01 · Works
Things I'm building.
AI creative studio · free
ATHN
Describe an idea and ATHN builds it: animations, one-page sites and interactive pieces, written as real code you can watch, explore, direct and export. This site was originally created with ATHN.
- Platform
- Windows
- Price
- Free
- Status
- Coming soon
- From a written idea to an animated piece, a site or an interactive scene
- Watch a piece, step through it, or direct a timeline of its actions
- Screenshots and video export of the result
- Every piece is one self-contained HTML file you can publish anywhere
Windows app · free
Dayglance
Your day at a glance: a small schedule widget that keeps your day in view, with what you're doing now, what comes next, and gentle reminders before each activity.
- Platform
- Windows
- Price
- Free
- Status
- Available
- Day and week views with the current activity highlighted
- A mini widget with what's on now or next
- Gentle reminders, checklists, and six themes or your own
- No account, no ads, no analytics: your schedule stays on your PC
02 · The acid mind
A head full of liquid colour.
Everything I make starts here: a head full of colour that won't sit still.
03 · About
One person, one studio.
David Duarte Serna
Developer & designer · Acidminded
I'm David Duarte Serna, an independent developer and designer. Acidminded is the name I build and publish under: free tools that are experimental and loud on purpose, designed and coded end to end by one person.
I care about interfaces that feel alive, AI as a creative instrument rather than a shortcut, and software that respects the time of whoever uses it.
- Free firstWhat I publish can be used without paying.
- Alive, not decorativeMotion has to say something.
- End to endIdea, design, code and release.
04 · Experience
Design and code, in the same head.
Skills · filter the experience
- AIOpenAI API, LLM pipelines (topic extraction, classification, reports), embeddings, prompt engineering, fine-tuning, token cost tracking, AI coding agents, MCP
- Backend & cloudPython, SQL and JavaScript; AWS (Lambda, EventBridge, ECS/Fargate, EC2, CloudWatch), GCP, Docker, GitHub Actions, Infrastructure as Code; MongoDB, PostgreSQL, Redis; REST APIs and the WhatsApp Cloud API
- ProductProduct and UI/UX design, conversational flow design, UI copy in a multi-language platform, dashboards and reports, end-to-end and load testing
- Apps & toolsWindows desktop apps, an AI creative studio, interactive WebGL sites like this one, packaging and Microsoft Store release
PDF in English (or Spanish when the page is in Spanish).
- Sep 2026 –
ATHN · Founder, design & development
A free desktop studio that turns a written idea into animations, websites and interactive pieces. It orchestrates AI agents across providers, checks every build in a browser and ships an MCP server; this site was originally made with it.
- 2026
Dayglance · Creator
A free schedule widget for Windows, in English and Spanish, local and private. Open source on GitHub; Microsoft Store release in progress.
- Apr 2025 –
Software Engineer (Backend & AI) · Crowd Voice
LLM pipelines and embeddings for a conversational interview platform; WhatsApp Cloud API certification with Meta; migration to AWS Lambda with a self-healing design and lower costs; end-to-end and load testing; UI copy in a multi-language platform.
- Jul 2024 – Mar 2025
Software Engineer · Zana (ProsperIA)
Fine-tuned LLMs for a health product's personalized chat, WhatsApp Flows with live data, Infrastructure as Code across clouds.
- Aug 2023 – Jun 2024
Data & Backend Engineer · retinIA (ProsperIA)
ETL pipelines and business dashboards, REST APIs and Lambda functions, automated AWS cost reports.
- Apr 2026 – Dec 2026
Master's in Blockchain & AI Systems Engineering · Code Crypto Academy
In progress; degree awarded by Universidad Europea Miguel de Cervantes (UEMC), Spain.
- 2012 – 2016
B.A. in Philosophy, with Honors · UNAM
Faculty of Philosophy and Letters; the root of how I think about design and logic.
05 · Contact
Talk to the acid mind.
Hiring, collaborating or just saying hello? LinkedIn is the fastest; GitHub is where the code lives.