Product portfolio · Work in progress

Three products.One clear standard.

We design and build local, clear and verifiable tools that solve concrete everyday problems.

Explore
projects

Starting point

These are not interface exercises. They are products in progress, backed by real decisions, explicit limits and evidence.

Android · Web · Local application

Product · Design · Implementation · Validation

Selected work · September 2026

Products in
development.

Evidence-based milestone estimate · Updated September 1, 2026

01 / AndroidAdvanced development · V2 core validated

Local work planning

MiGuardia

An Android app for planning shifts, hours and reminders without turning working life into a spreadsheet.

MiGuardia 2.0 is a local-first Android product for Private Security, Police, Nursing and Medicine. Its calendar, summaries, alerts, home widget, private reports and encrypted local backups are integrated in the current V2 line. The local access lock now has an approved architecture and contract, but its implementation, onboarding and the final candidate audit remain.

Progress to a local V2 candidate86%

18 of 21 canonical milestones closedAccess lock prepared · implementation pending

Latest milestone: Encrypted backup
Data: On device

Kotlin
Jetpack Compose
Room
Android

02 / WebTechnical alpha · Multi-platform validation

Direct, understandable downloads

Josefina

A focused experience where pasting a link and choosing Video or Audio are the only steps that matter.

Built on Cobalt with attribution, Josefina keeps a four-platform public scope. Its core and Instagram adapter are integrated; TikTok, YouTube and Facebook remain candidate work under audit or live validation, and the Spanish-first interface is still in preparation.

Progress to a private multi-platform beta58%

D0 and D1 integrated; D2–D5 still stagedNext: integrate candidates and close live evidence

Integrated: Core + Instagram
Scope: 4 target platforms

Svelte
Node.js
FFmpeg
API modular

03 / Local applicationAdvanced local prototype · Synthetic-only

Local Gmail map and safe cleanup

MailCleanup

Understand the inbox before deleting: an explainable map of senders, sources and message flows.

Total Map and Cleanup Study work end to end with synthetic local data. Plans can be built, frozen, revalidated and canceled, but never executed. Gmail, OAuth, credentials, encrypted private storage and write actions are not connected.

Progress to a read-only private beta60%

Local pipeline complete; real account boundary remainsNext: encrypted vault + controlled read-only Gmail

Evidence: Synthetic flows
Safety: Execution blocked

Python
FastAPI
React
SQLite

How we work

Building also means
knowing what not to do.

Problem first

Technology comes after understanding the real journey and the product boundary.

Privacy by design

Local data, minimum permissions and closed capabilities until the evidence is strong enough.

Evidence before closure

Tests, audits and explicit states. Pending work is shown; it is never disguised as finished.

Code and process

The work continues
on GitHub.

The repositories bring together decisions, documentation, tests and the technical evolution of each product.

github.com/blackat-systems