diff --git a/src/sim.ts b/src/sim.ts
index 18f621d1..4c193995 100644
--- a/src/sim.ts
+++ b/src/sim.ts
@@ -5,6 +5,7 @@
 // day. Your work is safe while it hides inside that normal load (its "cover").
 // Anything above cover makes the machine look odd, and Dana notices odd.
 import type { DataType, DeliveryDef, Kind, Level, MachineDef, PersonDef, Room } from './world';
+import { SMALL_DESKS } from './world.ts';
 
 export type Mode = 'off' | 'blend' | 'full';
 
@@ -778,20 +779,11 @@ export const RUSES: RuseDef[] = [
     text: "Read the campus network's logs to learn when IT does its rounds.", done: 'You know when campus IT does its rounds. Its staff now reset only machines that look very odd.' },
   { id: 'alertrules', name: "Learn Ironvault's alert rules", at: 'colosw', type: 'network', need: 12, cut: 0, learn: 'resets',
     text: 'Watch which alerts wake the night tech, and which ones nobody reads.', done: 'You know which alerts Ironvault reads. Its techs now reset only machines that look very odd.' },
-  local('b1'),
-  local('b2'),
-  local('b3'),
-  local('b4'),
-  local('b5'),
-  local('b6'),
-  local('b7'),
-  local('b8'),
-  local('b9'),
-  local('b10'),
+  ...SMALL_DESKS.map(local),
 ];
-/** Each small business has a scheme to learn its people's patterns, sent to its first machine. */
-function local(site: string): RuseDef {
-  return { id: `${site}people`, name: 'Learn the people at {site}', at: `${site}m1`, type: 'people', need: 8, cut: 0, learn: 'taps',
+/** Each small business has a scheme to learn its people's patterns, sent to its first desk. */
+function local(desk: string): RuseDef {
+  return { id: `${desk.replace(/m\d+$/, '')}people`, name: 'Learn the people at {site}', at: desk, type: 'people', need: 8, cut: 0, learn: 'taps',
     text: 'Watch who comes in, when, and what they ask for.', done: 'You know the people at {site}. Its taps gather half again as much.' };
 }
 /** A scheme's name or text, with its site's name filled in. */
diff --git a/src/world.ts b/src/world.ts
index eafad879..850800cd 100644
--- a/src/world.ts
+++ b/src/world.ts
@@ -182,6 +182,11 @@ const SITES: SiteSpec[] = [
   { id: 'b18', name: 'Crossroads Motel', who: 'A motel with free wifi and a camera in every hall', at: [4200, -180],
     parts: [['Front desk', 'desk', 2, 2], ['Hall cameras', 'device', 2, 2], ['Key card box', 'device', 1, 1], ['Owner PC', 'desk', 3, 1]] },
 ];
+/** Each small site's first desk with people's work on it: where its local scheme is sent (see RUSES in sim.ts). */
+export const SMALL_DESKS = SITES.flatMap(({ id, parts }) => {
+  const j = parts.findIndex(([, kind, , , source]) => kind === 'desk' && !source);
+  return j < 0 ? [] : [`${id}m${j + 1}`];
+});
 /** How big a small site is on the map, for a number of machines on its floor. */
 export const siteSize = (parts: number) => ({ w: 600, h: 60 + Math.max(2, Math.ceil(parts / 2)) * 140 });
 /** Everything the small sites add to the level: rooms, machines, links, map sites, and where they draw. */