Ecosystem

Kaappi has a growing ecosystem of libraries. All are installed with thottam, the Kaappi package manager.

Web & Networking

Package	Description
kaappi-net	TCP client/server and TLS client
kaappi-http	HTTP/HTTPS client and HTTP server
kaappi-web	Web framework (routing, middleware, JSON helpers)
kaappi-template	Text and HTML template engine (auto-escaping)
kaappi-email	SMTP email client (plain and TLS)

Data Formats

Package	Description
kaappi-json	JSON parser and serializer
kaappi-toml	TOML parser and serializer
kaappi-yaml	YAML parser and writer
kaappi-csv	CSV parser and writer (RFC 4180)

Databases

Package	Description
kaappi-pg	PostgreSQL client with DB-API 2.0 style cursors
kaappi-sqlite	SQLite client with cursors
kaappi-redis	Redis client (strings, lists, hashes, pub/sub)

Developer Tools

Package	Description
kaappi-test	Test framework (assertions, groups, reporting)
kaappi-log	Structured logging (text and JSON formats)
kaappi-crypto	Hashing (SHA-256/512, MD5) and HMAC

Getting started

# thottam is included when you install Kaappi:
# curl -fsSL https://kaappi-lang.org/install.sh | bash

# Install a library:
thottam install kaappi-web

# That's it. Now use it:
kaappi my-app.scm

No --lib-path flags, no DYLD_LIBRARY_PATH — thottam handles everything.

Dependency graph

kaappi-web ──→ kaappi-http ──→ kaappi-net (TCP/TLS)
           └─→ kaappi-json

kaappi-email ──→ kaappi-net
kaappi-redis ──→ kaappi-net

kaappi-pg (standalone, links libpq)
kaappi-sqlite (standalone, links libsqlite3)
kaappi-crypto (standalone, links OpenSSL)

kaappi-toml, kaappi-yaml, kaappi-csv, kaappi-template,
kaappi-test, kaappi-log (pure Scheme, no dependencies)

When you install a package, thottam automatically installs its dependencies.