gitwtfhub

wtf is greeter?

unsuman/greeter — explained in plain English

Analysis updated 2026-07-18 · repo last pushed 2025-04-04

GoAudience · developerComplexity · 3/5StaleSetup · easy

TL;DR

Greeter is a Go command-line tool that says hello in different languages, using a plugin system so extra languages load on demand instead of bloating the main app.

Mindmap

mindmap
  root((greeter))
    What it does
      Greets in many languages
      Built-in or plugin languages
      Loads plugins on demand
    Tech stack
      Go
      gRPC
    Use cases
      Explore plugin architecture
      Build modular CLI tools
      Add custom languages
    Audience
      Go developers
      CLI tool builders
    Design
      Lightweight builds
      Mixed built-in and plugin
      Mirrors Go database drivers

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

Why would anyone build with this?

REASON 1

Run a command like './greeter hello --lang=hindi' to get a greeting in a specific language.

REASON 2

Build a lightweight version of the app with only one language baked in.

REASON 3

Add a new language as a plugin without modifying the main program.

REASON 4

Study this project as an example of plugin architecture in a Go CLI tool.

What's in the stack?

GogRPC

How it stacks up

unsuman/greeter42wim/fabio42wim/go-xmpp
LanguageGoGoGo
Last pushed2025-04-042018-02-042020-01-24
MaintenanceStaleDormantDormant
Setup difficultyeasymoderatemoderate
Complexity3/53/53/5
Audiencedeveloperops devopsdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · easy Time to first run · 30min

Building with all languages embedded vs. a lightweight build changes what's compiled in.

Yoink these prompts

Prompt 1
Explain how Greeter decides whether to use a built-in language or launch a plugin.
Prompt 2
Show me how to add a new language plugin to this Go project.
Prompt 3
Walk me through building a lightweight version of Greeter with only English built-in.
Prompt 4
Explain how gRPC over standard input and output lets these plugins talk to the main app.

Frequently asked questions

wtf is greeter?

Greeter is a Go command-line tool that says hello in different languages, using a plugin system so extra languages load on demand instead of bloating the main app.

What language is greeter written in?

Mainly Go. The stack also includes Go, gRPC.

Is greeter actively maintained?

Stale — no commits in 1-2 years (last push 2025-04-04).

How hard is greeter to set up?

Setup difficulty is rated easy, with roughly 30min to a first successful run.

Who is greeter for?

Mainly developer.

View the repo → Decode another repo

This repo across BitVibe Labs

Don't trust strangers blindly. Verify against the repo.

Other repos in this lane