diff --git a/app.js b/app.js
index 01fb5bc..1037298 100644
--- a/app.js
+++ b/app.js
@@ -1,93 +1,123 @@
+/** @import DBTypes from "./types.d.ts" */
 import DB from "./db.js";
 
-// build parts
-const Part = {};
-function CreatePart(id, name)
+/** @type {DBTypes.Builder} */
+function DBBuilder(params)
 {
-    const part = {name, _:{id, time:0, work:[], need:[], make:[]}};
-    Part[id] = part;
-    return part;
-}
-await DB(import.meta.resolve('./db_part.csv'), 2, CreatePart);
+    return {
+        list:{},
+        load(){
+            const l = this.list;
+            const loader =(id, data)=>l[id] = data;
+            return DB(import.meta.resolve(params.path), params.cols, (...args)=>{
 
-
-// then build work
-const Work = [];
-function CreateWork(partId, user, time, data)
-{
-    const part = Part[partId];
-    const work = {user: user, time, data}
-    part._.work.push(work);
-    if(time > part._.time)
-    {
-        part._.time = time;
-    }
-    Work.push(work);
-    return work;
-}
-await DB(import.meta.resolve('./db_work.csv'), 3, CreateWork);
-
-
-// then build desks
-const Desk = {};
-/** @type {(need:string[], make:string[])=>[dirtyNeed:string[], dirtyMake:string[], needMax:number, needMin:number]} */
-const Range =(need, make)=>
-{
-    const dirtyNeed = [];
-    const dirtyMake = [];
-
-    let makeMin = Infinity;
-    let needMax = -Infinity;
-    need.forEach(partId => {
-        const part = Part[partId];
-        if(part._.time > needMax) needMax = part._.time;
-    });
-
-    make.forEach(partId => {
-        const part = Part[partId];
-        if(part._.time < makeMin) makeMin = part._.time;
-        if(part._.time < needMax)
-        {
-            dirtyMake.push(partId);
-        }
-    });
-
-    need.forEach(partId => {
-        const part = Part[partId];
-        if(part._.time > makeMin)
-        {
-            dirtyNeed.push(partId);
-        }
-    });
-
-    return [dirtyNeed, dirtyMake, needMax, makeMin];
-};
-
-/** @typedef {[need:Record<string, number]>, make:string[], mode:"one"|"all", role:string[]} StoredDesk */
-
-/** @type {(id:string, name:string, data:StoredDesk)=>void} */
-function CreateDesk(id, name, data, role, need, time, make, mode="one")
-{
-    const need = Object.keys(data[0])
-    const time = Object.values(data[0]);
-    const desk = {name, need, time, make, role, _:{id}};
-    Desk[id] = desk;
-    need.forEach(partId => Part[partId]._.need.push(desk));
-    make.forEach(partId => Part[partId]._.make.push(desk));
-
-    const check = Range(need, make);
-    console.log(check);
-
-    return desk;
+                params.load(loader, ...args);
+            });
+        },
+        save(){},
+    };
 }
 
-await DB(import.meta.resolve('./db_work.csv'), 3, (id, name, /**@type{StoredDesk}*/data)=>{
-    
-    const need = Object.keys(data[0])
-    CreateDesk(id, name, need, data[1], );
+const parts = DBBuilder({
+    path:"./db_part.csv",
+    cols:2,
+    load:(commit, id, name)=>commit(id, {name}),
+    save:(commit, params)=> commit("a", params.name)
 });
 
+await parts.load();
+console.log(parts.list);
 
 
-console.log(Part);
-console.log(Desk);
\ No newline at end of file
+
+// // build parts
+// const Part = {};
+// function CreatePart(id, name)
+// {
+//     const part = {name, _:{id, time:0, work:[], need:[], make:[]}};
+//     Part[id] = part;
+//     return part;
+// }
+// await DB(import.meta.resolve('./db_part.csv'), 2, CreatePart);
+// 
+// 
+// // then build work
+// const Work = [];
+// function CreateWork(partId, user, time, data)
+// {
+//     const part = Part[partId];
+//     const work = {user: user, time, data}
+//     part._.work.push(work);
+//     if(time > part._.time)
+//     {
+//         part._.time = time;
+//     }
+//     Work.push(work);
+//     return work;
+// }
+// await DB(import.meta.resolve('./db_work.csv'), 3, CreateWork);
+// 
+// 
+// // then build desks
+// const Desk = {};
+// /** @type {(need:string[], make:string[])=>[dirtyNeed:string[], dirtyMake:string[], needMax:number, needMin:number]} */
+// const Range =(need, make)=>
+// {
+//     const dirtyNeed = [];
+//     const dirtyMake = [];
+// 
+//     let makeMin = Infinity;
+//     let needMax = -Infinity;
+//     need.forEach(partId => {
+//         const part = Part[partId];
+//         if(part._.time > needMax) needMax = part._.time;
+//     });
+// 
+//     make.forEach(partId => {
+//         const part = Part[partId];
+//         if(part._.time < makeMin) makeMin = part._.time;
+//         if(part._.time < needMax)
+//         {
+//             dirtyMake.push(partId);
+//         }
+//     });
+// 
+//     need.forEach(partId => {
+//         const part = Part[partId];
+//         if(part._.time > makeMin)
+//         {
+//             dirtyNeed.push(partId);
+//         }
+//     });
+// 
+//     return [dirtyNeed, dirtyMake, needMax, makeMin];
+// };
+// 
+// /** @typedef {[need:Record<string, number]>, make:string[], mode:"one"|"all", role:string[]} StoredDesk */
+// 
+// /** @type {(id:string, name:string, data:StoredDesk)=>void} */
+// function CreateDesk(id, name, data, role, need, time, make, mode="one")
+// {
+//     const need = Object.keys(data[0])
+//     const time = Object.values(data[0]);
+//     const desk = {name, need, time, make, role, _:{id}};
+//     Desk[id] = desk;
+//     need.forEach(partId => Part[partId]._.need.push(desk));
+//     make.forEach(partId => Part[partId]._.make.push(desk));
+// 
+//     const check = Range(need, make);
+//     console.log(check);
+// 
+//     return desk;
+// }
+// 
+// await DB(import.meta.resolve('./db_work.csv'), 3, (id, name, /**@type{StoredDesk}*/data)=>{
+//     
+//     const need = Object.keys(data[0])
+//     CreateDesk(id, name, need, data[1], );
+// });
+// 
+// 
+// 
+// console.log(Part);
+// console.log(Desk);
\ No newline at end of file
diff --git a/db.js b/db.js
index adf7e3a..57b0227 100644
--- a/db.js
+++ b/db.js
@@ -1,4 +1,4 @@
-function createCSVScanner(onRow, nonJsonCols) {
+function createCSVScanner(onRow, cols) {
   let buffer = '';
 
   return function scanChunk(chunk) {
@@ -6,48 +6,22 @@ function createCSVScanner(onRow, nonJsonCols) {
     const lines = buffer.split('\n');
     buffer = lines.pop(); // Save incomplete line
 
-    if(nonJsonCols !== 0)
+    for (const line of lines)
     {
-      for (const line of lines)
-      {
-        const fields = [];
-        let start = 0;
-        let commaCount = 0;
-
-        for (let i = 0; i < line.length; i++) {
-          if (line[i] === ',' && commaCount < nonJsonCols) {
-            fields.push(line.slice(start, i));
-            start = i + 1;
-            commaCount++;
-          }
+      const fields = [];
+      let start = 0;
+      let col = 0;
+      for (let i = 0; i < line.length; i++) {
+        if (line[i] === ',' && col < cols) {
+          fields.push(line.slice(start, i));
+          start = i + 1;
+          col++;
         }
-        
-        const jsonStr = line.slice(start);
-        let jsonData = null;
-        try {
-          jsonData = JSON.parse(jsonStr);
-        } catch (_e) {
-          console.error('Invalid JSON:', jsonStr);
-        }
-        onRow(...fields, jsonData);
       }
+      fields.push(line.slice(start, line.length-1));
+      onRow(...fields);
     }
-    else
-    {
-      for (const line of lines)
-      {
-        const fields = [];
-        let start = 0;
-        for (let i = 0; i < line.length; i++) {
-          if (line[i] === ',') {
-            fields.push(line.slice(start, i));
-            start = i + 1;
-          }
-        }
-        fields.push(line.slice(start, line.length-1))
-        onRow(...fields);
-      }      
-    }
+
   };
 }
 
diff --git a/deno.json b/deno.json
new file mode 100644
index 0000000..52d32e3
--- /dev/null
+++ b/deno.json
@@ -0,0 +1,5 @@
+{
+    "compilerOptions": {
+        "checkJs": true
+    }
+}
\ No newline at end of file
diff --git a/types.d.ts b/types.d.ts
index e3853e8..08f199f 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -1,17 +1,15 @@
-export {};
-
 export type Row<
     L extends number,
     T extends any[] = []
 > = T["length"] extends L ? T : Row<L, [string, ...T]>;
-
-declare global {
-    namespace DB
-    {
-        type DB<T, Count extends number>=(path:string, flat:Count, handler:(...args:[...Row<Count>, T])=>void)=>Promise<void>
-    }
-}
-
-
-
-
+export type Builder = <Count extends number, Loaded, Sized extends Row<Count>>(params:
+{
+    path:string,
+    cols:Count,
+    load:(commitLoad:(id:string, data:Loaded)=>Sized, ...args:Sized)=>[id:string, data:Loaded],
+    save:(commitSave:(...args:Sized)=>Sized, internal:Loaded) => Sized
+}) => {
+    list:Record<string, Loaded>,
+    load:()=>Promise<void>,
+    save:()=>Promise<void>
+}
\ No newline at end of file