diff --git a/app/main/store.ts b/app/main/store.ts
index f64efdc..3df522f 100644
--- a/app/main/store.ts
+++ b/app/main/store.ts
@@ -1,47 +1,58 @@
 import fs from 'node:fs';
 import path from 'node:path';
 
-import Database from 'better-sqlite3';
-
 import type { CharacterSheet, SystemDefinition } from '../shared/types.ts';
 import { validateSystemDefinition } from '../shared/systemValidate.ts';
 
+type Meta = {
+  systems: Record<string, SystemDefinition>;
+  characters: Record<string, CharacterSheet>;
+};
+
 export class AppStore {
-  private readonly db: Database.Database;
+  private readonly rootDir: string;
+  private readonly dbPath: string;
+  private data: Meta = { systems: {}, characters: {} };
 
   constructor(dbPath: string) {
-    fs.mkdirSync(path.dirname(dbPath), { recursive: true });
-    this.db = new Database(dbPath);
-    this.db.exec(`
-      CREATE TABLE IF NOT EXISTS systems (
-        id TEXT PRIMARY KEY,
-        revision INTEGER NOT NULL,
-        schema_version INTEGER NOT NULL,
-        name TEXT NOT NULL,
-        json TEXT NOT NULL,
-        updated_at TEXT NOT NULL
-      );
-      CREATE TABLE IF NOT EXISTS characters (
-        id TEXT PRIMARY KEY,
-        system_id TEXT NOT NULL,
-        name TEXT NOT NULL,
-        json TEXT NOT NULL,
-        updated_at TEXT NOT NULL
-      );
-    `);
+    // dbPath historically pointed at *.sqlite — keep parent dir, use store.json
+    this.rootDir = path.dirname(dbPath);
+    this.dbPath = path.join(this.rootDir, 'store.json');
+    fs.mkdirSync(this.rootDir, { recursive: true });
+    this.load();
+  }
+
+  private load(): void {
+    try {
+      const raw = fs.readFileSync(this.dbPath, 'utf8');
+      const parsed = JSON.parse(raw) as Meta;
+      this.data = {
+        systems: parsed.systems ?? {},
+        characters: parsed.characters ?? {},
+      };
+    } catch {
+      this.data = { systems: {}, characters: {} };
+      this.persist();
+    }
+  }
+
+  private persist(): void {
+    fs.writeFileSync(this.dbPath, JSON.stringify(this.data, null, 2), 'utf8');
   }
 
   listSystems(): Array<{ id: string; name: string; revision: number; schemaVersion: number }> {
-    return this.db
-      .prepare('SELECT id, name, revision, schema_version AS schemaVersion FROM systems ORDER BY name')
-      .all() as Array<{ id: string; name: string; revision: number; schemaVersion: number }>;
+    return Object.values(this.data.systems)
+      .map((s) => ({
+        id: s.id,
+        name: s.name,
+        revision: s.revision,
+        schemaVersion: s.schemaVersion,
+      }))
+      .sort((a, b) => a.name.localeCompare(b.name));
   }
 
   getSystem(id: string): SystemDefinition | null {
-    const row = this.db.prepare('SELECT json FROM systems WHERE id = ?').get(id) as
-      | { json: string }
-      | undefined;
-    return row ? (JSON.parse(row.json) as SystemDefinition) : null;
+    return this.data.systems[id] ?? null;
   }
 
   upsertSystem(system: SystemDefinition): SystemDefinition {
@@ -49,89 +60,47 @@ export class AppStore {
     if (!check.ok) {
       throw new Error(check.errors.map((e) => e.message).join('; '));
     }
-    const existing = this.getSystem(system.id);
+    const existing = this.data.systems[system.id];
     const next: SystemDefinition = {
       ...system,
       revision: existing ? existing.revision + 1 : system.revision || 1,
     };
-    const now = new Date().toISOString();
-    this.db
-      .prepare(
-        `INSERT INTO systems (id, revision, schema_version, name, json, updated_at)
-         VALUES (@id, @revision, @schemaVersion, @name, @json, @updatedAt)
-         ON CONFLICT(id) DO UPDATE SET
-           revision=excluded.revision,
-           schema_version=excluded.schema_version,
-           name=excluded.name,
-           json=excluded.json,
-           updated_at=excluded.updated_at`,
-      )
-      .run({
-        id: next.id,
-        revision: next.revision,
-        schemaVersion: next.schemaVersion,
-        name: next.name,
-        json: JSON.stringify(next),
-        updatedAt: now,
-      });
+    this.data.systems[next.id] = next;
+    this.persist();
     return next;
   }
 
   deleteSystem(id: string): void {
-    const tx = this.db.transaction(() => {
-      this.db.prepare('DELETE FROM characters WHERE system_id = ?').run(id);
-      this.db.prepare('DELETE FROM systems WHERE id = ?').run(id);
-    });
-    tx();
+    delete this.data.systems[id];
+    for (const [cid, ch] of Object.entries(this.data.characters)) {
+      if (ch.systemId === id) delete this.data.characters[cid];
+    }
+    this.persist();
   }
 
   listCharacters(systemId?: string): Array<{ id: string; name: string; systemId: string }> {
-    if (systemId) {
-      return this.db
-        .prepare(
-          'SELECT id, name, system_id AS systemId FROM characters WHERE system_id = ? ORDER BY name',
-        )
-        .all(systemId) as Array<{ id: string; name: string; systemId: string }>;
-    }
-    return this.db
-      .prepare('SELECT id, name, system_id AS systemId FROM characters ORDER BY name')
-      .all() as Array<{ id: string; name: string; systemId: string }>;
+    return Object.values(this.data.characters)
+      .filter((c) => (systemId ? c.systemId === systemId : true))
+      .map((c) => ({ id: c.id, name: c.name, systemId: c.systemId }))
+      .sort((a, b) => a.name.localeCompare(b.name));
   }
 
   getCharacter(id: string): CharacterSheet | null {
-    const row = this.db.prepare('SELECT json FROM characters WHERE id = ?').get(id) as
-      | { json: string }
-      | undefined;
-    return row ? (JSON.parse(row.json) as CharacterSheet) : null;
+    return this.data.characters[id] ?? null;
   }
 
   upsertCharacter(character: CharacterSheet): CharacterSheet {
-    const now = new Date().toISOString();
-    this.db
-      .prepare(
-        `INSERT INTO characters (id, system_id, name, json, updated_at)
-         VALUES (@id, @systemId, @name, @json, @updatedAt)
-         ON CONFLICT(id) DO UPDATE SET
-           system_id=excluded.system_id,
-           name=excluded.name,
-           json=excluded.json,
-           updated_at=excluded.updated_at`,
-      )
-      .run({
-        id: character.id,
-        systemId: character.systemId,
-        name: character.name,
-        json: JSON.stringify(character),
-        updatedAt: now,
-      });
+    this.data.characters[character.id] = character;
+    this.persist();
     return character;
   }
 
   deleteCharacter(id: string): void {
-    this.db.prepare('DELETE FROM characters WHERE id = ?').run(id);
+    delete this.data.characters[id];
+    this.persist();
   }
 
   close(): void {
-    this.db.close();
+    this.persist();
   }
 }
diff --git a/docs/adr/001-core.md b/docs/adr/001-core.md
index 93bc199..15a4ca0 100644
--- a/docs/adr/001-core.md
+++ b/docs/adr/001-core.md
@@ -2,38 +2,20 @@
 
 ## Decision
 
-Electron + React + TypeScript + Vite; SQLite with JSON documents for systems/characters; portable `app/shared` contract for future TTRPG Player + mobile.
+Electron + React + TypeScript + Vite; JSON file store (`userData/store.json`) for systems/characters; portable `app/shared` contract for future TTRPG Player + mobile.
 
 ## Rationale
 
-Matches TTRPG Player packaging targets; offline-first; no Postgres.
+Offline-first; avoids native module rebuild (better-sqlite3) requiring Visual Studio on Windows.
 
 # ADR-002: Formula DSL
 
-## Decision
-
-Custom minimal expression language (`floor`, `ceil`, `round`, `min`, `max`, `clamp`, arithmetic, `attr.*` / `skill.*` / `resource.*` / `derived.*`).
-
-## Rationale
-
-Same evaluator can be copied into the player; explicit rounding; no heavy CEL/JSONata dependency.
+Custom minimal expression language with explicit rounding; portable to the player.
 
 # ADR-003: Schema freeze via snapshotHash
 
-## Decision
-
-Player binds store `snapshotHash` (content-addressed) rather than inline full schema per character.
-
-## Rationale
-
-Implements freeze-on-bind without bloating `players.json`.
+Player binds store `snapshotHash` rather than inline full schema per character.
 
 # ADR-004: Spells from dnd.su
 
-## Decision
-
-Provide an import pipeline for PHB-labelled spells from dnd.su at product owner request, with README/IP disclaimer. Prefer SRD stubs in default presets.
-
-## Rationale
-
-Owner requested PHB coverage; redistribution risk acknowledged.
+Import pipeline for PHB-labelled spells at product owner request, with IP disclaimer. Default presets ship SRD stubs.
diff --git a/package-lock.json b/package-lock.json
index 5107bff..e879128 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,14 +11,12 @@
       "dependencies": {
         "@dnd-kit/core": "^6.3.1",
         "@dnd-kit/utilities": "^3.2.2",
-        "better-sqlite3": "^11.10.0",
         "react": "^19.2.5",
         "react-dom": "^19.2.5",
         "reactflow": "^11.11.4"
       },
       "devDependencies": {
         "@playwright/test": "^1.62.0",
-        "@types/better-sqlite3": "^7.6.13",
         "@types/node": "^25.6.0",
         "@types/react": "^19.2.14",
         "@types/react-dom": "^19.2.3",
@@ -1368,16 +1366,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/@types/better-sqlite3": {
-      "version": "7.6.13",
-      "resolved": "https://registry.npmjs.org/@types/better-sqlite3/-/better-sqlite3-7.6.13.tgz",
-      "integrity": "sha512-NMv9ASNARoKksWtsq/SHakpYAYnhBrQgGD8zkLYk/jaK8jUGn08CfEdTRgYhMypUQAfzSP8W6gNLe0q19/t4VA==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "@types/node": "*"
-      }
-    },
     "node_modules/@types/cacheable-request": {
       "version": "6.0.3",
       "resolved": "https://registry.npmjs.org/@types/cacheable-request/-/cacheable-request-6.0.3.tgz",
@@ -2077,6 +2065,7 @@
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
       "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==",
+      "dev": true,
       "funding": [
         {
           "type": "github",
@@ -2093,37 +2082,6 @@
       ],
       "license": "MIT"
     },
-    "node_modules/better-sqlite3": {
-      "version": "11.10.0",
-      "resolved": "https://registry.npmjs.org/better-sqlite3/-/better-sqlite3-11.10.0.tgz",
-      "integrity": "sha512-EwhOpyXiOEL/lKzHz9AW1msWFNzGc/z+LzeB3/jnFJpxu+th2yqvzsSWas1v9jgs9+xiXJcD5A8CJxAG2TaghQ==",
-      "hasInstallScript": true,
-      "license": "MIT",
-      "dependencies": {
-        "bindings": "^1.5.0",
-        "prebuild-install": "^7.1.1"
-      }
-    },
-    "node_modules/bindings": {
-      "version": "1.5.0",
-      "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
-      "integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==",
-      "license": "MIT",
-      "dependencies": {
-        "file-uri-to-path": "1.0.0"
-      }
-    },
-    "node_modules/bl": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/bl/-/bl-4.1.0.tgz",
-      "integrity": "sha512-1W07cM9gS6DcLperZfFSj+bWLtaPGSOHWhPiGzXmvVJbRLdG82sH/Kn8EtW1VqWVA54AKf2h5k5BbnIbwF3h6w==",
-      "license": "MIT",
-      "dependencies": {
-        "buffer": "^5.5.0",
-        "inherits": "^2.0.4",
-        "readable-stream": "^3.4.0"
-      }
-    },
     "node_modules/bluebird": {
       "version": "3.7.2",
       "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.2.tgz",
@@ -2153,30 +2111,6 @@
         "node": "20 || >=22"
       }
     },
-    "node_modules/buffer": {
-      "version": "5.7.1",
-      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz",
-      "integrity": "sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/feross"
-        },
-        {
-          "type": "patreon",
-          "url": "https://www.patreon.com/feross"
-        },
-        {
-          "type": "consulting",
-          "url": "https://feross.org/support"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "base64-js": "^1.3.1",
-        "ieee754": "^1.1.13"
-      }
-    },
     "node_modules/buffer-from": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
@@ -2619,6 +2553,7 @@
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-6.0.0.tgz",
       "integrity": "sha512-aW35yZM6Bb/4oJlZncMH2LCoZtJXTRxES17vE3hoRiowU2kWHaJKFkSBDnDR+cm9J+9QhXmREyIfv0pji9ejCQ==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "mimic-response": "^3.1.0"
@@ -2630,15 +2565,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/deep-extend": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz",
-      "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=4.0.0"
-      }
-    },
     "node_modules/defer-to-connect": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/defer-to-connect/-/defer-to-connect-2.0.1.tgz",
@@ -2701,6 +2627,7 @@
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.1.2.tgz",
       "integrity": "sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==",
+      "dev": true,
       "license": "Apache-2.0",
       "engines": {
         "node": ">=8"
@@ -3036,6 +2963,7 @@
       "version": "1.4.5",
       "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.5.tgz",
       "integrity": "sha512-ooEGc6HP26xXq/N+GCGOT0JKCLDGrq2bQUZrQ7gyrJiZANJ/8YDTxTpQBXGMn+WbIQXNVpyWymm7KYVICQnyOg==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "once": "^1.4.0"
@@ -3184,15 +3112,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/expand-template": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/expand-template/-/expand-template-2.0.3.tgz",
-      "integrity": "sha512-XYfuKMvj4O35f/pOXLObndIRvyQ+/+6AhODh+OKWj9S9498pHHn/IMszH+gt0fBCRWMNfk1ZSp5x3AifmnI2vg==",
-      "license": "(MIT OR WTFPL)",
-      "engines": {
-        "node": ">=6"
-      }
-    },
     "node_modules/exponential-backoff": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/exponential-backoff/-/exponential-backoff-3.1.3.tgz",
@@ -3242,12 +3161,6 @@
         }
       }
     },
-    "node_modules/file-uri-to-path": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
-      "integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==",
-      "license": "MIT"
-    },
     "node_modules/filelist": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/filelist/-/filelist-1.0.6.tgz",
@@ -3305,12 +3218,6 @@
         "node": ">= 6"
       }
     },
-    "node_modules/fs-constants": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz",
-      "integrity": "sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==",
-      "license": "MIT"
-    },
     "node_modules/fs-extra": {
       "version": "10.1.0",
       "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-10.1.0.tgz",
@@ -3423,12 +3330,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/github-from-package": {
-      "version": "0.0.0",
-      "resolved": "https://registry.npmjs.org/github-from-package/-/github-from-package-0.0.0.tgz",
-      "integrity": "sha512-SyHy3T1v2NUXn29OsWdxmK6RwHD+vkj3v8en8AOBZ1wBQ/hCAQ5bAQTD02kW4W9tUp/3Qh6J8r9EvntiyCmOOw==",
-      "license": "MIT"
-    },
     "node_modules/glob": {
       "version": "7.2.3",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz",
@@ -3693,26 +3594,6 @@
         "node": ">= 14"
       }
     },
-    "node_modules/ieee754": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.2.1.tgz",
-      "integrity": "sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/feross"
-        },
-        {
-          "type": "patreon",
-          "url": "https://www.patreon.com/feross"
-        },
-        {
-          "type": "consulting",
-          "url": "https://feross.org/support"
-        }
-      ],
-      "license": "BSD-3-Clause"
-    },
     "node_modules/inflight": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@@ -3729,12 +3610,7 @@
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
-      "license": "ISC"
-    },
-    "node_modules/ini": {
-      "version": "1.3.8",
-      "resolved": "https://registry.npmjs.org/ini/-/ini-1.3.8.tgz",
-      "integrity": "sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==",
+      "dev": true,
       "license": "ISC"
     },
     "node_modules/is-fullwidth-code-point": {
@@ -4248,6 +4124,7 @@
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-3.1.0.tgz",
       "integrity": "sha512-z0yWI+4FDrrweS8Zmt4Ej5HdJmky15+L2e6Wgn3+iK5fWzb6T3fhNFq2+MeTRb064c6Wr4N/wv0DzQTjNzHNGQ==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=10"
@@ -4276,6 +4153,7 @@
       "version": "1.2.8",
       "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
       "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==",
+      "dev": true,
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/ljharb"
@@ -4318,12 +4196,6 @@
         "mkdirp": "bin/cmd.js"
       }
     },
-    "node_modules/mkdirp-classic": {
-      "version": "0.5.3",
-      "resolved": "https://registry.npmjs.org/mkdirp-classic/-/mkdirp-classic-0.5.3.tgz",
-      "integrity": "sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A==",
-      "license": "MIT"
-    },
     "node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -4350,12 +4222,6 @@
         "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
       }
     },
-    "node_modules/napi-build-utils": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/napi-build-utils/-/napi-build-utils-2.0.0.tgz",
-      "integrity": "sha512-GEbrYkbfF7MoNaoh2iGG84Mnf/WZfB0GdGEsM8wz7Expx/LlWf5U8t9nvJKXSp3qr5IsEbK04cBGhol/KwOsWA==",
-      "license": "MIT"
-    },
     "node_modules/node-abi": {
       "version": "4.35.0",
       "resolved": "https://registry.npmjs.org/node-abi/-/node-abi-4.35.0.tgz",
@@ -4501,6 +4367,7 @@
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
       "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
+      "dev": true,
       "license": "ISC",
       "dependencies": {
         "wrappy": "1"
@@ -4721,45 +4588,6 @@
         "node": "^12.20.0 || >=14"
       }
     },
-    "node_modules/prebuild-install": {
-      "version": "7.1.3",
-      "resolved": "https://registry.npmjs.org/prebuild-install/-/prebuild-install-7.1.3.tgz",
-      "integrity": "sha512-8Mf2cbV7x1cXPUILADGI3wuhfqWvtiLA1iclTDbFRZkgRQS0NqsPZphna9V+HyTEadheuPmjaJMsbzKQFOzLug==",
-      "deprecated": "No longer maintained. Please contact the author of the relevant native addon; alternatives are available.",
-      "license": "MIT",
-      "dependencies": {
-        "detect-libc": "^2.0.0",
-        "expand-template": "^2.0.3",
-        "github-from-package": "0.0.0",
-        "minimist": "^1.2.3",
-        "mkdirp-classic": "^0.5.3",
-        "napi-build-utils": "^2.0.0",
-        "node-abi": "^3.3.0",
-        "pump": "^3.0.0",
-        "rc": "^1.2.7",
-        "simple-get": "^4.0.0",
-        "tar-fs": "^2.0.0",
-        "tunnel-agent": "^0.6.0"
-      },
-      "bin": {
-        "prebuild-install": "bin.js"
-      },
-      "engines": {
-        "node": ">=10"
-      }
-    },
-    "node_modules/prebuild-install/node_modules/node-abi": {
-      "version": "3.96.0",
-      "resolved": "https://registry.npmjs.org/node-abi/-/node-abi-3.96.0.tgz",
-      "integrity": "sha512-rebQ/lz7i0EkoLzUVSrKRzA69zMkwLp95kKMWoMDkkM00Suxz0D7zEQPwRml5fQum24mj7bPvmlgLAmu2JCiYg==",
-      "license": "MIT",
-      "dependencies": {
-        "semver": "^7.3.5"
-      },
-      "engines": {
-        "node": ">=10"
-      }
-    },
     "node_modules/proc-log": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/proc-log/-/proc-log-6.1.0.tgz",
@@ -4817,6 +4645,7 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.4.tgz",
       "integrity": "sha512-VS7sjc6KR7e1ukRFhQSY5LM2uBWAUPiOPa/A3mkKmiMwSmRFUITt0xuj+/lesgnCv+dPIEYlkzrcyXgquIHMcA==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "end-of-stream": "^1.1.0",
@@ -4856,21 +4685,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/rc": {
-      "version": "1.2.8",
-      "resolved": "https://registry.npmjs.org/rc/-/rc-1.2.8.tgz",
-      "integrity": "sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==",
-      "license": "(BSD-2-Clause OR MIT OR Apache-2.0)",
-      "dependencies": {
-        "deep-extend": "^0.6.0",
-        "ini": "~1.3.0",
-        "minimist": "^1.2.0",
-        "strip-json-comments": "~2.0.1"
-      },
-      "bin": {
-        "rc": "cli.js"
-      }
-    },
     "node_modules/react": {
       "version": "19.3.0",
       "resolved": "https://registry.npmjs.org/react/-/react-19.3.0.tgz",
@@ -4923,20 +4737,6 @@
         "read-binary-file-arch": "cli.js"
       }
     },
-    "node_modules/readable-stream": {
-      "version": "3.6.2",
-      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
-      "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
-      "license": "MIT",
-      "dependencies": {
-        "inherits": "^2.0.3",
-        "string_decoder": "^1.1.1",
-        "util-deprecate": "^1.0.1"
-      },
-      "engines": {
-        "node": ">= 6"
-      }
-    },
     "node_modules/require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
@@ -5073,26 +4873,6 @@
         "@rolldown/binding-win32-x64-msvc": "1.2.8"
       }
     },
-    "node_modules/safe-buffer": {
-      "version": "5.2.1",
-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
-      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/feross"
-        },
-        {
-          "type": "patreon",
-          "url": "https://www.patreon.com/feross"
-        },
-        {
-          "type": "consulting",
-          "url": "https://feross.org/support"
-        }
-      ],
-      "license": "MIT"
-    },
     "node_modules/sanitize-filename": {
       "version": "1.6.4",
       "resolved": "https://registry.npmjs.org/sanitize-filename/-/sanitize-filename-1.6.4.tgz",
@@ -5123,6 +4903,7 @@
       "version": "7.8.5",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.8.5.tgz",
       "integrity": "sha512-Y7/KDsb8LjooZpwaqGyulO6DQlksgCncchHGk+sZIY4SBvUocMBEFH5Ur1fI4dV+Jvl0w6cjvucaIi40puRioA==",
+      "dev": true,
       "license": "ISC",
       "bin": {
         "semver": "bin/semver.js"
@@ -5186,51 +4967,6 @@
       "dev": true,
       "license": "ISC"
     },
-    "node_modules/simple-concat": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/simple-concat/-/simple-concat-1.0.1.tgz",
-      "integrity": "sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q==",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/feross"
-        },
-        {
-          "type": "patreon",
-          "url": "https://www.patreon.com/feross"
-        },
-        {
-          "type": "consulting",
-          "url": "https://feross.org/support"
-        }
-      ],
-      "license": "MIT"
-    },
-    "node_modules/simple-get": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-4.0.1.tgz",
-      "integrity": "sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/feross"
-        },
-        {
-          "type": "patreon",
-          "url": "https://www.patreon.com/feross"
-        },
-        {
-          "type": "consulting",
-          "url": "https://feross.org/support"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "decompress-response": "^6.0.0",
-        "once": "^1.3.1",
-        "simple-concat": "^1.0.0"
-      }
-    },
     "node_modules/simple-update-notifier": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/simple-update-notifier/-/simple-update-notifier-2.0.0.tgz",
@@ -5293,15 +5029,6 @@
         "node": ">= 6"
       }
     },
-    "node_modules/string_decoder": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
-      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
-      "license": "MIT",
-      "dependencies": {
-        "safe-buffer": "~5.2.0"
-      }
-    },
     "node_modules/string-width": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
@@ -5330,15 +5057,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/strip-json-comments": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
-      "integrity": "sha512-4gB8na07fecVVkOI6Rs4e7T6NOTki5EmL7TUduTs6bu3EdnSycntVJ4re8kgZA+wx9IueI2Y11bfbgwtzuE0KQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/sumchecker": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/sumchecker/-/sumchecker-3.0.1.tgz",
@@ -5382,40 +5100,6 @@
         "node": ">=18"
       }
     },
-    "node_modules/tar-fs": {
-      "version": "2.1.5",
-      "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.5.tgz",
-      "integrity": "sha512-OboTd8mmMhZDNPV+UjQcK9yKAatXu2aJ+r1w4im1Otd4M4fl2hwvdoXUxIYHFTHWK/3y3FarBP70v3vwmGlOxw==",
-      "license": "MIT",
-      "dependencies": {
-        "chownr": "^1.1.1",
-        "mkdirp-classic": "^0.5.2",
-        "pump": "^3.0.0",
-        "tar-stream": "^2.1.4"
-      }
-    },
-    "node_modules/tar-fs/node_modules/chownr": {
-      "version": "1.1.4",
-      "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz",
-      "integrity": "sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==",
-      "license": "ISC"
-    },
-    "node_modules/tar-stream": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-2.2.0.tgz",
-      "integrity": "sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==",
-      "license": "MIT",
-      "dependencies": {
-        "bl": "^4.0.3",
-        "end-of-stream": "^1.4.1",
-        "fs-constants": "^1.0.0",
-        "inherits": "^2.0.3",
-        "readable-stream": "^3.1.1"
-      },
-      "engines": {
-        "node": ">=6"
-      }
-    },
     "node_modules/tar/node_modules/yallist": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-5.0.0.tgz",
@@ -5544,18 +5228,6 @@
         "fsevents": "~2.3.3"
       }
     },
-    "node_modules/tunnel-agent": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
-      "integrity": "sha512-McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==",
-      "license": "Apache-2.0",
-      "dependencies": {
-        "safe-buffer": "^5.0.1"
-      },
-      "engines": {
-        "node": "*"
-      }
-    },
     "node_modules/type-fest": {
       "version": "0.13.1",
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.13.1.tgz",
@@ -5661,6 +5333,7 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/vite": {
@@ -5793,6 +5466,7 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "dev": true,
       "license": "ISC"
     },
     "node_modules/xmlbuilder": {
diff --git a/package.json b/package.json
index 6a2d767..ba755e7 100644
--- a/package.json
+++ b/package.json
@@ -21,14 +21,12 @@
   "dependencies": {
     "@dnd-kit/core": "^6.3.1",
     "@dnd-kit/utilities": "^3.2.2",
-    "better-sqlite3": "^11.10.0",
     "react": "^19.2.5",
     "react-dom": "^19.2.5",
     "reactflow": "^11.11.4"
   },
   "devDependencies": {
     "@playwright/test": "^1.62.0",
-    "@types/better-sqlite3": "^7.6.13",
     "@types/node": "^25.6.0",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
@@ -60,19 +58,47 @@
     "asar": true,
     "mac": {
       "target": [
-        { "target": "dmg", "arch": ["x64", "arm64"] },
-        { "target": "zip", "arch": ["x64", "arm64"] }
+        {
+          "target": "dmg",
+          "arch": [
+            "x64",
+            "arm64"
+          ]
+        },
+        {
+          "target": "zip",
+          "arch": [
+            "x64",
+            "arm64"
+          ]
+        }
       ]
     },
     "win": {
       "target": [
-        { "target": "nsis", "arch": ["x64"] },
-        { "target": "zip", "arch": ["x64"] }
+        {
+          "target": "nsis",
+          "arch": [
+            "x64"
+          ]
+        },
+        {
+          "target": "zip",
+          "arch": [
+            "x64"
+          ]
+        }
       ]
     },
     "linux": {
       "target": [
-        { "target": "AppImage", "arch": ["x64", "arm64"] }
+        {
+          "target": "AppImage",
+          "arch": [
+            "x64",
+            "arm64"
+          ]
+        }
       ],
       "category": "Game"
     },
diff --git a/scripts/build.mjs b/scripts/build.mjs
index 004bf1d..e43cf35 100644
--- a/scripts/build.mjs
+++ b/scripts/build.mjs
@@ -12,9 +12,9 @@ await build({
   platform: 'node',
   format: 'cjs',
   outfile: path.join(root, 'dist/main/index.cjs'),
-  external: ['electron', 'better-sqlite3'],
-  sourcemap: true,
-});
+    external: ['electron'],
+    sourcemap: true,
+  });
 
 await build({
   entryPoints: [path.join(root, 'app/preload/index.ts')],
diff --git a/scripts/dev.mjs b/scripts/dev.mjs
index 9dcc9a0..da42f49 100644
--- a/scripts/dev.mjs
+++ b/scripts/dev.mjs
@@ -14,7 +14,7 @@ async function buildMain() {
     platform: 'node',
     format: 'cjs',
     outfile: path.join(root, 'dist/main/index.cjs'),
-    external: ['electron', 'better-sqlite3'],
+    external: ['electron'],
     sourcemap: true,
   });
   await build({