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Ergo Sum

AstroTypeScript

When D2Foundry went dark

I have six thousand hours in Destiny 2. Most of my friends, most of my time, a top-global PvP rank at points. Then D2Foundry went down. It was the community tool everyone used to simulate weapon rolls and time-to-kill values, and one of the maintainers told me directly that keeping it current had become miserable.

I gave myself a weekend to see if I could do it. Ergo Sum is named after my favourite weapon in the game.

What it does

A full weapon database with procedurally generated pages for every gun and perk combination. Accurate stat previews. Time-to-kill calculators. Weapon and perk data pulled from the official Bungie API and a couple of community-run spreadsheets, then stitched together. Astro for static generation, which felt exactly right for this. The site is fast in a way that matters when you’re sat in a fireteam waiting for the next round.

The feature I cared most about is shareable rolls. Pick a weapon, set its perks, flip the TTK button on, copy the link. Stats, masterwork, everything bakes into a short URL you can paste into Discord without eating the sentence. Tell a friend a gun is awesome, send the link, here’s the proof.

A weapon detail page showing selected perks, stat bars, and time-to-kill values

Where it stands now

Thousands of human visitors in the first week, and the site has kept ticking along. It auto-syncs from Bungie’s API when new weapons drop, so maintenance is more or less zero. I barely play anymore. Bungie did a number on themselves.

Somewhere between a love letter and a monument. It did what I needed at the time, and that was the whole point.