The Second Lighthouse · The newsletter

For people with more interests than one career can hold.

Navigate the AI age, turn curiosity into meaningful work, and build greater ownership over your time and future.

One more step on Substack to confirm.

Weekly build notesReal experiments, not theoryLeave anytime
Curiosity compounds.
Skills stack. Freedom follows.
01  Projects

What I'm building.

Side projects and tools across AI, voice, memory, and the desktop — shipped in public, one build log at a time.

Ekkovia

Building

Do the work. Ekkovia tells the story.

A native macOS recorder and editor. Capture your screen, iPhone, and camera together, then shape the result without turning the recording into another editing project — one timeline, exported for wide, vertical, or square.

macOSSwiftVideoCaptureEditor

Yapivo

Live

Voice-first productivity

A macOS voice tool for turning spoken thoughts into text, actions, and routed workflows before the idea disappears.

macOSVoiceAIClipboard

Wiskl

Building

Optical whiskers for machines

A free-space photonic guidance bench: establish a precision optical axis, steer the beam, measure the pointing error, and correct it. Align, measure, steer, verify, repeat.

PhotonicsOpticsGuidancePython

Copibara

Live

Smart clipboard manager

Copy once, reuse intelligently. Copibara turns your clipboard into a small memory layer for daily work.

macOSSwiftClipboardProductivity
02  Explorations

Beyond the screen.

Hands-on hobbies and side explorations — where curiosity leaves the keyboard and gets physical.

Drones

Active

Photography, flight & autonomy

Chasing better shots and slowly teaching the camera to fly itself.

Aerial VideoFPVAutonomy

3D Printing

Active

Model, print & experiment

Making weird little objects, useful prototypes, and anything that looks unnecessarily good in silk PLA.

3D ModelingPrototypingMaking

Photonics

Active

Light, perception & machine intelligence

Exploring how light can help machines sense, focus, and navigate the world around them.

NanophotonicsMetamaterialsOptical Guidance
View all explorations
03  About
Saul Flores Jr.

Saul Flores Jr.

Engineer · Builder · Creator — San Diego, CA

I build tools for curious people who collect ideas faster than they can finish them. Questions become experiments, experiments become skills, and skills become the structure for new possibilities.

YapivoVoice-first productivity
CopibaraSmart clipboard manager
EkkoviaRecord. Edit. Ship.
YouTubeBuilding in public