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:8000 {
    handle_path /opa/* {
        reverse_proxy http://localhost:8181
    }
    handle {
        root * .
        file_server
    }
}

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{
  "tasks": {
    "dev": "deno run --allow-net --watch main.ts"
  },
  "imports": {
    "opa": "https://esm.sh/@styra/opa@0.2.5"
  }
}

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#!/usr/bin/env bb
(require '[babashka.fs :as :fs]
         '[babashka.process :refer [shell]])

(def make "/usr/bin/make")

(defn find-root
  ([]   (find-root (fs/cwd)))
  ([wd] (cond
          (fs/exists? (fs/path wd "Makefile")) {:dir wd}

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const events = await db.sql`select
    created_at,
    last_updated_at,
  from events
`;

const stackPeriod = () => {

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Custom Queries

const db = await DuckDBClient.of({
  table_one: FileAttachment("data/table_ond.parquet"),
  table_two: FileAttachment("data/table_two.parquet"),
});

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diff --git a/topdown/arithmetic.go b/topdown/arithmetic.go
index c75f816a4..b0061074f 100644
--- a/topdown/arithmetic.go
+++ b/topdown/arithmetic.go
@@ -6,6 +6,7 @@ package topdown
 
 import (
 	"math/big"
+	"strconv"
 

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OPA, oso, oh no!

• Caveat
• Maturity
• Interface
  • WebAssembly
• Policy language
• Next Steps

You may have gotten accustomed to Keep Calm and Use OPA, and then suddenly, there's

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require 'oso'
$polar=<<POLAR
add(x: String, y: String, x.concat(y));
add(x: List,   y: List,   x.concat(y));
add(x: List,   y: String, x0.concat(y)) if x0 in x;
add(x: String, y: List,   x.concat(y0)) if y0 in y;
POLAR
class Example
  def initialize
    @o = Oso.new

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{:deps {djblue/portal {:mvn/version "0.37.1"}}}