plate 00 - the developersest. 2026

EST. 2026

Welcome to Coco Copi Developers. Coco Copi finds problems and helps to fix the world. 11 open-source projects, one language, zero third-party dependencies.

11open-source projects
1language from scratch
0third-party dependencies
8.6gflops matmul, on a phone
{/* Gaussian blur for the background paths */}
custodian ◆ anvilforge ◆ corros ◆ courierforge ◆ brothforge ◆ oremath ◆ cryoquench ◆ cryotorch ◆ glazecraft ◆ kilncraft ◆ crucible ◆ custodian ◆ anvilforge ◆ corros ◆ courierforge ◆ brothforge ◆ oremath ◆ cryoquench ◆ cryotorch ◆ glazecraft ◆ kilncraft ◆ crucible ◆
plate 01 — the collection~/cococopi/src/projects.cro

the collection

11 specimens, one forge — each one built from scratch in corros. hover a plate to stamp it.

Self-hosted PaaS with full ownership
paasinfrastructuredeploymentself-hosted
a self-hosted PaaS forged entirely in Corros
paasdeploymentserverdevops
a scripting language forged from scratch
languagecompilervmself-hostingaot
a requests-style HTTP client
httpjsonclientnetworking
a BeautifulSoup-style HTML parser
htmlparsingscrapingselectors
a NumPy-style ndarray library
mathtensorsnumpypure-corros
a from-scratch deep learning engine
mlautogradc-corehigh-performance
a PyTorch-shaped deep learning API
mlautogradnnoptimizers
a React-style frontend framework
frontendcomponentshooksssrlive-updates
an Express-style web framework
backendhttpservermiddlewaresessions
a local LLM forge
llmggufserverstreaming
plate 02 — the ledger~/cococopi/src/stack.cro

one language, every layer

where other ecosystems need a dozen languages, corros does it with one — the table of contents of the whole ecosystem.

Iinfracustodian
IIpaasanvilforge
IIIfrontendglazecraft
IVbackendkilncraft
Vhttpcourierforge
VIhtmlbrothforge
VIImathoremath
VIIIml enginecryoquench
IXtorch apicryotorch
Xllm forgecrucible
XIthe languagecorros
plate 03 — the method~/cococopi/src/why.cro

why forge it all

the point was never just another library. it was proving that a language written from scratch can grow its own complete ecosystem — faster, smaller, and easier to read than the originals it replaces.

note 01

self-hosting

corros compiles corros: the compiler, the vm, and the aot backend are written in the language itself. the rust in the repo is only the bootstrap seed.

note 02

from scratch

no vendored parsers, no third-party kernels, no framework-of-the-month. exp, log, softmax, html tokenizing, json, http, routing — all hand-written in corros.

note 03

fast where it counts

aot compilation emits c and ties hand-written c; the cryoquench core hits 8.6 gflops on a phone. pure-corros reference implementations stay readable.