The Second Brain I Actually Use for Car Builds and Building VaultBay

I needed one place to track everything. My detailing products, my car's modification history, my VaultBay dev notes, random ideas that hit me at 11pm. Most tools either tried to do too much or couldn't keep up with how I actually think.

That sounds like a first-world problem. Maybe it is.

Before We Get Into It

Notion is beautiful. I'll give it that. I built three different databases for VaultBay planning alone. Set up templates for car builds, product reviews, sprint tracking. Spent hours organizing things that never got used.

The problem with Notion is that it wants you to build systems. I needed something that just worked with how my brain already works - which is messy, non-linear, and scattered across contexts.

Apple Notes is fine for quick stuff. But searching for anything older than two weeks turns into archaeology. And there's no linking between ideas, no way to see how a product I tested in January connects to the coating decision I made last week.

Obsidian kept staring at me from the dock. I downloaded it eighteen months ago, used it once, and forgot about it.

Until I didn't.

The Setup That Finally Stuck

What changed was simple: I stopped trying to build a perfect system and started treating it like a digital notebook. Just text files. Markdown. Folders that make sense to me.

My vault - yes, I actually call it a vault now, which is both a VaultBay joke and genuinely what it feels like - has three main areas.

Car stuff lives in one folder per car. Inside each folder is a master notes file that links to product reviews, installation dates for mods, maintenance logs. When I coated my Civic with Gtechniq, I wrote what I used, how I prepped it, what I'd do different. Six months later, I could find that in seconds. It wasn't a chore to write - it was just notes.

VaultBay development logs read like actual thinking, not project management. "Tried refactoring the build history view today. It broke. Rollback took 20 minutes. Need to revisit when the kid sleeps longer." That's not pretty. But it's honest. And I can actually search it.

And then there's the Inbox. Everything goes there first. Product links, feature ideas, Halfords receipts, screenshots of parts I want to remember. Every Sunday I spend ten minutes moving stuff to where it belongs. Most of it dies in Inbox, which is fine. The stuff that matters, I actually use.

The killer feature - and I resisted this for way too long - is the daily note. Just a date-stamped file. What I worked on, what I noticed, what I need to remember. No template. No structure. Just one text file per day.

Turns out, that's enough.

Why It Works For Me

Obsidian's real power is the graph view, seeing how everything connects. I use it maybe once a week. The actual value is simpler: everything is just text files I control. No subscription, no locked data, no app that might change its pricing model or go under. If Obsidian disappeared tomorrow, I'd lose maybe an afternoon moving files to another folder structure.

The local-first thing matters to me. My car notes live on my machine. Synced to my phone through iCloud, but the source of truth is a folder I own. That's not paranoia - it's just not wanting to rebuild three years of notes because some startup pivoted.

This won't work if you need collaboration. If you're a team, Notion or Linear are probably better. But if you're one person building something on Wednesday afternoons while your one-year-old naps? Local text files might be exactly what you need.

If You're Still Reading

If you've tried project management tools and they feel like homework, try the stupid-simple approach. Text files. Folders. A search bar.

I've been using this setup for eight months now. VaultBay planning lives here. My car's build log lives here. The product comparison I did for ceramic coatings lives here. It's not fancy. But it works.

Early access is open at thevaultbay.com if you want to see what I'm building with this setup as the inspiration.