Opinions, tools & hard-won lessons from working on Pensive
Arash Taher · Volvo Cars
Agentic Foundation · April 2026
Don't just read docs. Build something real that's yours.
Break it, fix it, ship it. That's how you actually learn.
Think thoroughly about the UX first.
Use Google Stitch to prototype fast.
Write the tests first. Let them guide your design.
CI is important. automate from day one.
Not everything needs vector search.
Sometimes a well-organized wiki gives you more signal, less noise.
Phi-4 was underwhelming…
But Gemma 4 might have changed the game. Keep testing.
But don't let that close your eyes to alternatives.
Svelte, Solid, HTMX... find what works best for you.
Build a collection of starter templates.
Then use agents to build on top.
Bots provide an amazing interface for chats
it's the most developer-friendly messaging platform out there.
If it's not pretty or elegant, don't touch it. Wait for something better
Give it time.
A $5 VPS can do a lot.
Knowing Linux is cool again
Obsessively collect and document.