Add repl subcommand

index.ts

@@ -10,6 +10,7 @@ import { DateTime } from "luxon"
 import fs from "node:fs"
 import { jsonOut, csvOut, sum, runCommands, getXdgConfigHome } from "./util.js"
 import path from "node:path"
+import repl from "node:repl"
 
 type QuantityDecorator = {
   type: "QUANTITY"
@@ -133,6 +134,9 @@ const commands = (argv: ParsedArgs) => {
         }
       }
     },
+    repl() {
+      repl.start().context.p = p
+    }
   }
 }