Webinars & Decks

Talks, webinars, product demos, and slide decks from Califa on product design, design teams, and developer tools.

Talk · June 2018

RETHINK, 2018. A framework for hiring the design team your company actually needs instead of the one some other startup is hiring for: learn, analyze, and evolve. With lessons from building the design team at DigitalOcean.

43 min

Talk · October 2016

Full Stack Anxiety

55 min

GitHub · Webinar · July 2021

Lean UX Research Tips from GitHub

All webinars & decks

2 min
Unify · Demo · June 2026
Supercharge Loader
A demo of a new thinking state for Unify's chat experience, closer to the new brand language.
4 min
Unify · Demo · May 2026
In-Chat Sequence Builder
A demo of reviewing and editing sales email sequences inside Unify's AI chat.
5 min
Unify · Demo · May 2026
Top Nav Proposal
A proposal for Unify's navigation after the product went chat-first.
2 min
Unify · Demo · May 2026
Chat Thinking Fidget
A demo of a small interactive toy to play with while Unify's AI chat is thinking.
18 min
Unify · Demo · May 2026
Teaching AI Your Voice
A Unify demo of some fun and novel patterns to teach AI how to sound like you.
2 min
Unify · Demo · April 2026
Chat UI Spike
A prototype of Unify’s AI chat as a fluid sidebar that knows what you’re looking at.
16 min
Unify · Vision · April 2026
Agentic Unify
An all-hands demo of Unify's next direction: AI agents that do the sales prospecting for reps.
3 min
Unify · Demo · March 2026
Usage Component on the Billing Page
A working prototype of the credit usage panel on Unify's billing page, in every state.
3 min
Unify · Demo · February 2026
Homepage Storyboard
A demo of Unify's homepage hero animation, showing the product finding and routing buyers.
247 slides
Unify · Deck · December 2025 · 7 chapters
Unify's New User Experience
Almost 250 slides on fixing Unify's new user experience, made two weeks in.
17 min
Heap · Demo · May 2023
How Heap Works
Two narrated drafts of a sales pitch explaining how Heap's product analytics actually works.
46 min
Heap · Webinar · April 2023
Design Principles Workshop
A Heap workshop on the design principles meant to keep a product easy to use as it grows into a platform.
18 min
Heap · Vision · February 2023
Heap Product Vision
The vision deck that aligned Heap, a product analytics company, on its future.
25 min
GitHub · Vision · July 2021
Guest Branches
A vision for letting people contribute to GitHub repos without copying the whole repo first.
55 min
GitHub · Webinar · July 2021
Lean UX Research Tips from GitHub
A webinar on how GitHub ran fast user research, and how to ask unbiased questions.
72 slides
GitHub · Deck · April 2021 · 7 chapters
The Future of Pull Requests
A vision for GitHub pull requests built around required comments, plus how to ship it.
63 slides
Heap · Deck · April 2021 · 7 chapters
Heap Product Critique
A fresh-eyes critique of Heap's product, from signup to building a dashboard.
24 min
GitHub · Vision · August 2020
Required Comments
A vision for GitHub code review where specific comments, not people, block a merge.
82 slides
GitHub · Deck · August 2020 · 7 chapters
Codespace Pricing and Permanence
A walkthrough of GitHub Codespaces pricing, and how long a codespace should live.
5 min
GitHub · Demo · April 2020
Open with X
A spec to turn GitHub’s old Clone button into an “Open with” menu for all your own tools.
55 slides
GitHub · Deck · January 2020 · 8 chapters
Stacked Diffs
A 2020 spike on stacked diffs for GitHub, years before GitHub shipped its own.
32 min
Talk · June 2018
Building Appropriate Design Teams
A talk on figuring out which design team your company actually needs, and then hiring it.
65 slides
DigitalOcean · Deck · January 2017 · 3 chapters
DigitalOcean Product Vision
A plan for DigitalOcean's customer experience, from a developer's first visit to the bill.
43 min
Talk · October 2016
Full Stack Anxiety
A talk on choosing what to learn next when designers are expected to know everything.
12 min
Talk · October 2016
Unsolicited Dating Advice
A lightning talk defending the American date format to a room full of Australians.

Webinars & Decks

Building Appropriate Design Teams

Full Stack Anxiety

Lean UX Research Tips from GitHub

All webinars & decks

Supercharge Loader

In-Chat Sequence Builder

Top Nav Proposal

Chat Thinking Fidget

Teaching AI Your Voice

Chat UI Spike

Agentic Unify

Usage Component on the Billing Page

Homepage Storyboard

Unify's New User Experience

How Heap Works

Design Principles Workshop

Heap Product Vision

Guest Branches

Lean UX Research Tips from GitHub

The Future of Pull Requests

Heap Product Critique

Required Comments

Codespace Pricing and Permanence

Open with X

Stacked Diffs

Building Appropriate Design Teams

DigitalOcean Product Vision

Full Stack Anxiety

Unsolicited Dating Advice