Babashka and ClojureScript runtime selection guidance by @borkdude
Scanned 9/6/2026
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---
name: borkdude
description: Babashka and ClojureScript runtime selection guidance by @borkdude
version: 1.0.0
---
<!-- Propagated to amp | Trit: 0 | Source: .ruler/skills/borkdude -->
# Borkdude Skill: ClojureScript Runtime Selection
**Status**: ✅ Production Ready
**Trit**: 0 (ERGODIC - runtime neutral)
**Principle**: Right tool for context
**Author**: Michiel Borkent (@borkdude)
---
## Overview
**Borkdude** provides guidance for selecting the appropriate ClojureScript runtime based on execution context. Named after Michiel Borkent, creator of Babashka, SCI, Cherry, Squint, and other Clojure tools.
## Runtime Matrix
| Runtime | Context | JVM | Node | Browser | REPL |
|---------|---------|-----|------|---------|------|
| **Babashka** | Scripting | ✗ | ✗ | ✗ | ✓ |
| **SCI** | Embedded | ✓ | ✓ | ✓ | ✓ |
| **Cherry** | Compiler | ✗ | ✓ | ✓ | ✓ |
| **Squint** | Compiler | ✗ | ✓ | ✓ | ✓ |
| **Scittle** | Browser | ✗ | ✗ | ✓ | ✓ |
| **nbb** | Node | ✗ | ✓ | ✗ | ✓ |
## Decision Tree
```
Start
│
├── Need fast startup? ─────────► Babashka (bb)
│
├── Browser target?
│ ├── Minimal bundle? ──────► Squint
│ ├── Full ClojureScript? ──► Cherry
│ └── Script tag? ──────────► Scittle
│
├── Node scripting? ────────────► nbb
│
└── Embedded interpreter? ──────► SCI
```
## Commands
```bash
# Babashka (scripting)
bb script.clj
# nbb (Node)
npx nbb script.cljs
# Squint (compile to JS)
npx squint compile src/main.cljs
# Cherry (compile with macros)
npx cherry compile src/main.cljs
# Scittle (browser)
# <script src="https://cdn.jsdelivr.net/npm/scittle@0.6.15/dist/scittle.js"></script>
```
## SCI (Small Clojure Interpreter)
Embedded interpreter for sandboxed evaluation:
```clojure
(require '[sci.core :as sci])
(def ctx (sci/init {:namespaces {'user {'foo (fn [] "bar")}}}))
(sci/eval-string* ctx "(user/foo)")
;; => "bar"
```
## Cherry vs Squint
| Feature | Cherry | Squint |
|---------|--------|--------|
| ClojureScript compat | High | Medium |
| Bundle size | Larger | Smaller |
| Macros | Full support | Limited |
| Interop | CLJS-style | JS-native |
| Target audience | CLJS developers | JS developers |
## Babashka Pods
Extend Babashka with pods:
```clojure
(require '[babashka.pods :as pods])
(pods/load-pod 'org.babashka/go-sqlite3 "0.1.0")
(require '[pod.babashka.go-sqlite3 :as sqlite])
(sqlite/execute! "test.db" ["CREATE TABLE users (id INTEGER PRIMARY KEY)"])
```
## Integration with Music Topos
```clojure
;; Use Babashka for scripts
(ns ruler.propagate
(:require [babashka.fs :as fs]))
;; Use SCI for embedded color evaluation
(def color-ctx
(sci/init {:namespaces
{'gay {'color-at (fn [idx] (gay/color-at idx))}}}))
```
## When to Use Each
### Babashka
- Shell scripts
- Build automation
- CLI tools
- Data processing
### SCI
- Sandboxed evaluation
- Plugin systems
- Configuration DSLs
- Interactive REPLs
### Cherry
- Full CLJS features in browser
- Macro-heavy code
- CLJS library compat
### Squint
- Minimal JS output
- JS-first interop
- Small bundles
### Scittle
- Browser scripting
- No build step
- Quick prototypes
### nbb
- Node.js scripting
- npm library access
- Server scripts
## Example: Skill Propagation
```clojure
#!/usr/bin/env bb
;; .ruler/propagate.clj
(require '[babashka.fs :as fs]
'[clojure.string :as str])
(defn propagate-skill! [skill-name]
(let [source (str ".ruler/skills/" skill-name "/SKILL.md")
content (slurp source)]
(doseq [agent ["codex" "claude" "cursor"]]
(let [target (str "." agent "/skills/" skill-name "/SKILL.md")]
(fs/create-dirs (fs/parent target))
(spit target content)))))
(propagate-skill! "unworld")
```
---
**Skill Name**: borkdude
**Type**: Runtime Selection / ClojureScript Tooling
**Trit**: 0 (ERGODIC)
**Runtimes**: Babashka, SCI, Cherry, Squint, Scittle, nbb
## Scientific Skill Interleaving
This skill connects to the K-Dense-AI/claude-scientific-skills ecosystem:
### Graph Theory
- **networkx** [○] via bicomodule
- Universal graph hub
### Bibliography References
- `general`: 734 citations in bib.duckdb
## Cat# Integration
This skill maps to **Cat# = Comod(P)** as a bicomodule in the equipment structure:
```
Trit: 0 (ERGODIC)
Home: Prof
Poly Op: ⊗
Kan Role: Adj
Color: #26D826
```
### GF(3) Naturality
The skill participates in triads satisfying:
```
(-1) + (0) + (+1) ≡ 0 (mod 3)
```
This ensures compositional coherence in the Cat# equipment structure.Is this your skill, or is something wrong with this listing? Request removal or report an issue. Author removals are honored within 72 hours.
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