Tyler Fossen · Colorado

I build websites, apps, and data tools from the ground up.

Music producer turned full-stack developer. I ship fast, self-hosted sites on Cloudflare, custom backends with real email and download systems, and a synthesizer you talk to. AI-assisted end to end, and always learning.

See the workGet in touch
Tyler Fossen
5sites and apps shipped
13,246duplicate files safely removed in one cleanup
2UC Berkeley AI certificates
Work

Things I've built

Every one of these is live. Click through and poke around.

Potion synthesizer interface: a glass vessel, rows of oscillator knobs, a talk bar, and a keyboard Live prototype · click to play

Potion

A synthesizer you talk to. Instead of dialing knobs, you say "deeper," "more wobble," or "too much, back off," and the sound moves in that direction. It never replaces your patch with a generated one; it nudges what you already have. Built as a browser instrument with a Cloudflare backend, and the subject of my UC Berkeley capstone.

Web AudioCloudflare WorkersD1 databaseLLM intent → parameter deltasProduct design
hoofhustle.com homepage

Hoof Hustle

My sound-design label. A landing page and sound library with email capture, a free sample pack delivered by signed download links that expire, a subscriber database, spam protection, and a private admin dashboard for reviewing sounds. Fully self-hosted on Cloudflare.

Cloudflare WorkersD1 + R2Transactional emailSEO + AI searchAdmin dashboard
cslnorthmetro.org homepage

CSL North Metro

Website for the Center for Spiritual Living North Metro in Thornton, Colorado. Services, prayer and affirmations, giving, books, contact, and a live-stream button, all on a fast static site that costs almost nothing to run.

Static siteCloudflareNonprofitMobile-first
sheilafossenart.com homepage

Sheila Fossen Art

Gallery and print shop for a watercolor artist. Home, gallery, contact, and a shop for prints, built on a hosted site builder so the artist can update it herself without touching code. I set it up and keep it current.

Site builderGalleryOnline prints
Beauty Essentials by Ann preview siteClient draft in progress

Beauty Essentials by Ann

Brochure site for a licensed esthetician opening a home-based practice. Spa-style service menu, phone booking, local-business structured data for Google, and an optional small online store using Stripe. The client reviews the draft at a preview link before anything goes live on her domain.

Static siteLocal SEOStripe (optional)Cloudflare Pages
How I work

Three things I do that most web designers don't

SEO and AI-search optimization

Google isn't the only thing reading your site anymore. ChatGPT, Claude, and Perplexity answer questions by reading pages too, and they need the same things Google does, spelled out clearly.

On hoofhustle.com I added structured data for the organization, products, FAQ, and collections, a sitemap, a search-phrased FAQ, a page for every sound so each one is its own landing page, and an llms.txt file that tells AI crawlers what the site is. Then I opened the site to AI crawlers instead of blocking them.

  • Structured data (JSON-LD) on every page type
  • Canonical URLs, sitemap, robots, llms.txt
  • Per-item landing pages, not one long list
  • Titles and share images that look right in a text message
// hoofhustle.com — what search engines and AI see
{
  "@type": "Product",
  "name": "GlitterDrop — Serum 2 presets + samples",
  "brand": { "@type": "Organization", "name": "Hoof Hustle" },
  "offers": { "price": "0", "availability": "InStock" }
}

# llms.txt
# Hoof Hustle
> Sound-design label: Serum 2 presets and sample packs.
> Free pack: /packs  ·  Sound library: /sounds

Website optimization

Most small-business sites are slow, expensive, and fragile because they're built on a page builder with forty plugins. I build the opposite: a single clean page, hosted on Cloudflare's network, that loads in under a second on a phone and costs a few dollars a year.

That includes the unglamorous parts that make a site actually work: email that lands in the inbox instead of spam (SPF, DKIM, DMARC), download links that expire, signup forms that can't be abused, and DNS that's set up right.

<1sload time on 4G
$0/mohosting for a static site
0trackers or plugins
hoofhustle.com on a phone

Large CSV files and messy data

I take spreadsheets and file dumps that are too big or too tangled to fix by hand, clean them without breaking anything, and hand back a record of every change.

Real examples: a sample-library cleanup that scanned about 2,000 music project files, found 13,246 duplicates (24 GB), confirmed none were still in use, and removed them with a full CSV audit trail. A review workflow for 1,052 sounds with every verdict exported to CSV. A rename map for a 712-file product so old names always trace back to new ones.

13,246duplicates removed, zero breakage
1,052items reviewed and tracked
100%of changes logged
originalnew nameverdict
bass_loop_final2 (3).wavHH_GD_Bass_Wook_140_04_01.wavkeep
drums 140 v3 COPY.wavHH_GD_Drums_Dazeder_140_08_02.wavfeature
bass_loop_final2.wav— duplicate of row 1cut
lead_idea_new_new.wavHH_GD_Lead_Altar_126_04_03.wavkeep
Untitled-7.wav— tempo mismatch, flaggededit
Credentials

UC Berkeley Executive Education

Two certificate programs in applied AI, completed in 2026. Each one links to its verification page.

UC Berkeley Executive Education certificate: Agentic AI

Agentic AI: Strategy, Applications, and Organizational Impact

August 2026 · UC Berkeley Executive Education

Verify →PDF
UC Berkeley Executive Education certificate: Artificial Intelligence: Business Strategies and Applications

Artificial Intelligence: Business Strategies and Applications

April 2026 · UC Berkeley Executive Education

Verify →
Contact

Have a site or a data problem?

Tell me what you're trying to do. I'll tell you honestly whether it's worth building and what it would take.