guillem cotchasoftware designer

TUNGSTENE [v3.1]•Last updated [just now]•[00:00 GTM]

guillem cotcha

software designer

Guigz

Hi there! I'm Guillem, and welcome to
Tungstene, my personal space on web.
This is a living log where I share case studies, explorations, sketches, articles, and notes from my journey. I explore the intersection of human needs, AI, product design, and furnitures always aiming to build better experiences that solve complex challenges.

Currently at source.paris

TUNGSTENE [v3.1]Last updated [just now]

[00:00 GTM]

My workflow to vibe code Dressmi

My workflow to vibe code Dressmi

I’m just sharing how I’ve been working with AI for a few months to build my virtual wardrobe app. Combining the search power of Perplexity with the intelligence of Opus 4.5 makes releasing a Swift app pretty easy!

Long press exploration

Dressmi, Long press exploration

Jan 26

Help to build digital writing

Nuesend, Help to build digital writing

Dec 25

Some test on the landing page

Fray, Some test on the landing page

Jul 25

How we industrialize Figma to create the new Ledger NANO

How we industrialize Figma to create the new Ledger NANO

Building on the solid foundations established during the Stax and Flex projects, we have continued to evolve our library system. Our core objective is to capitalize on this existing work to efficiently translate the new art direction, thereby ensuring a smooth and efficient transition for Ledger’s design teams.

Mobile Apps Framework with DLS Foundations

Source x CMA CGM, Mobile Apps Framework with DLS Foundations

Jul 23

v1 done in figma

Dressmi, v1 done in figma

Feb 23

Mobile webapp for Keobiz

Wygos, Mobile webapp for Keobiz

Jun 20

Exploration new onboard

Layup, Exploration new onboard

Jan 26

Help to build digital writing

Nuesend, Help to build digital writing

Dec 25

Vibe code & launch an iOS basketball app

Layup, Vibe code & launch an iOS basketball app

Oct 25

search launcher exploration

Fray, search launcher exploration

Jul 25

Source x Ledger, Contribute to building a new pixel brand

Apr 25

Concept to follow up your container

Source x CMA CGM, Concept to follow up your container

Jul 23

Build a sport social media

GOAT, Build a sport social media

Jan 22

Building the v2 of UI

Dressmi, Building the v2 of UI

Jan 26

Nuesend, Help to build digital writing

Dec 25

Some test on the landing page

Fray, Some test on the landing page

Jul 25

search exploration

Fray, search exploration

Jul 25

How to infuse design knowledge into a big company

CMACGM, How to infuse design knowledge into a big company

We were in charge of revamp the entire mobile app regarding a cross-platform technology and add 8 new features

v1 done in figma

Dressmi, v1 done in figma

Feb 23

Build their management & accouting tool

Keobiz, Build their management & accouting tool

Jul 21

My workflow to vibe code Dressmi

My workflow to vibe code Dressmi

I’m just sharing how I’ve been working with AI for a few months to build my virtual wardrobe app. Combining the search power of Perplexity with the intelligence of Opus 4.5 makes releasing a Swift app pretty easy!

Long press exploration

Dressmi, Long press exploration

Jan 26

Help to build digital writing

Nuesend, Help to build digital writing

Dec 25

Some test on the landing page

Fray, Some test on the landing page

Jul 25

How we industrialize Figma to create the new Ledger NANO

How we industrialize Figma to create the new Ledger NANO

Building on the solid foundations established during the Stax and Flex projects, we have continued to evolve our library system. Our core objective is to capitalize on this existing work to efficiently translate the new art direction, thereby ensuring a smooth and efficient transition for Ledger’s design teams.

Mobile Apps Framework with DLS Foundations

Source x CMA CGM, Mobile Apps Framework with DLS Foundations

Jul 23

v1 done in figma

Dressmi, v1 done in figma

Feb 23

Mobile webapp for Keobiz

Wygos, Mobile webapp for Keobiz

Jun 20

Exploration new onboard

Layup, Exploration new onboard

Jan 26

Help to build digital writing

Nuesend, Help to build digital writing

Dec 25

Vibe code & launch an iOS basketball app

Layup, Vibe code & launch an iOS basketball app

Oct 25

search launcher exploration

Fray, search launcher exploration

Jul 25

Source x Ledger, Contribute to building a new pixel brand

Apr 25

Concept to follow up your container

Source x CMA CGM, Concept to follow up your container

Jul 23

Build a sport social media

GOAT, Build a sport social media

Jan 22

Building the v2 of UI

Dressmi, Building the v2 of UI

Jan 26

Nuesend, Help to build digital writing

Dec 25

Some test on the landing page

Fray, Some test on the landing page

Jul 25

search exploration

Fray, search exploration

Jul 25

How to infuse design knowledge into a big company

CMACGM, How to infuse design knowledge into a big company

We were in charge of revamp the entire mobile app regarding a cross-platform technology and add 8 new features

v1 done in figma

Dressmi, v1 done in figma

Feb 23

Build their management & accouting tool

Keobiz, Build their management & accouting tool

Jul 21