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What is cog built with?

cog is a Go repo built with net/http, axum, and Tokio. It watches its errors with Sentry, makes its content with github.com/tonistiigi/go-csvvalue, validates its data with github.com/getkin/kin-openapi, github.com/xeipuuv/gojsonschema, and jsonschema, is tested with github.com/stretchr/testify and github.com/testcontainers/testcontainers-go, and deploys with structlog, tracing, Docker, tracing-subscriber, OpenTelemetry, and 2 more. It has 114,111 written lines, with 183 test files.

Read on November 15, 2026, at commit ee8ae12. Read it as markdown

The card says what it's built with. Its whole map opens it up: every part of the code and how it connects to the rest.

Backend

The base 2

Services 1

Support

The base 1

Content 1

  • github.com/tonistiigi/go-csvvalue1 file

Validation 3

Testing 2

  • github.com/stretchr/testify130 files
  • github.com/testcontainers/testcontainers-go2 files

Deploy 7

Tools 6

  • github.com/docker/cli3 files
  • github.com/moby/buildkit3 files
  • github.com/smacker/go-tree-sitter17 files
  • github.com/spf13/cobra17 files
  • pyo3-stub-gen6 files
  • typing-extensions1 file

Other 46

  • tokio-util11 files
  • pyo39 files
  • github.com/moby/docker-image-spec4 files
  • github.com/docker/go-connections2 files
  • github.com/moby/term2 files
  • HashiCorp2 files
  • rustls2 files
  • containerd1 file
  • github.com/gofrs/flock1 file
  • github.com/opencontainers/image-spec1 file
  • Google1 file
  • pyo3-async-runtimes
34 more
  • pyyaml
  • github.com/google/go-containerregistry23 files
  • serde_json16 files
  • golang.org/x/sync9 files
  • serde8 files
  • thiserror7 files
  • futures6 files
  • async-trait5 files
  • github.com/mitchellh/go-homedir4 files
  • github.com/rogpeppe/go-internal4 files
  • go.yaml.in/yaml/v44 files
  • github.com/mattn/go-isatty3 files
  • golang.org/x/term3 files
  • uuid3 files
  • base642 files
  • github.com/creack/pty2 files
  • github.com/vincent-petithory/dataurl2 files
  • gopkg.in/yaml.v32 files
  • reqwest2 files
  • anyhow1 file
  • chrono1 file
  • dashmap1 file
  • github.com/logrusorgru/aurora1 file
  • github.com/sabhiram/go-gitignore1 file
  • github.com/spf13/pflag1 file
  • github.com/tonistiigi/fsutil1 file
  • golang.org/x/crypto1 file
  • golang.org/x/exp1 file
  • golang.org/x/sys1 file
  • mime_guess1 file
  • nix1 file
  • requests1 file
  • ureq1 file
  • libc

Other repos with a similar stack

Ordered by how much of its stack they share with cog, then by stars.

Frequently asked questions

What language is cog written in?
cog is written in Go, with 114,111 written lines.
What framework does cog use?
cog is built with net/http, axum, and Tokio.
What services does cog use?
cog watches its errors with Sentry.

The proof: crates/coglet-python/src/sentry_integration.rs, line 23

Does cog have tests?
Yes. cog has 183 test files and is tested with github.com/stretchr/testify and github.com/testcontainers/testcontainers-go.
Which repos have a stack like cog's?
The ones that share most of its stack:openai/codexruvnet/RuViewunionlabs/union

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