diff --git a/.vscode/launch.json b/.vscode/launch.json
index 212b10d824..e7ef0632d5 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -129,7 +129,7 @@
         "MINIO_ACCESS_KEY": "minioadmin",
         "MINIO_SECRET_KEY": "minioadmin",
         "MINIO_ENDPOINT": "localhost",
-        "MODEL_VERSION": "v0.6.286"
+        "MODEL_VERSION": "v0.6.287"
         // "INIT_SCRIPT_URL": "https://raw.githubusercontent.com/hcengineering/init/main/script.yaml",
         // "INIT_WORKSPACE": "onboarding",
       },
diff --git a/dev/tool/src/index.ts b/dev/tool/src/index.ts
index 5c54f9f4d9..6f98eac8e7 100644
--- a/dev/tool/src/index.ts
+++ b/dev/tool/src/index.ts
@@ -1503,7 +1503,7 @@ export function devTool (
     .option('-w, --workspace <workspace>', 'Selected workspace only', '')
     .option('-c, --concurrency <concurrency>', 'Number of documents being processed concurrently', '10')
     .action(async (cmd: { workspace: string, concurrency: string }) => {
-      const { mongodbUri, dbUrl } = prepareTools()
+      const { mongodbUri, dbUrl, txes } = prepareTools()
       await withDatabase(mongodbUri, async (db, client) => {
         await withStorage(mongodbUri, async (adapter) => {
           const workspaces = await listWorkspacesPure(db)
@@ -1521,7 +1521,7 @@ export function devTool (
               workspaceUrl: workspace.workspaceUrl ?? ''
             }
 
-            const { pipeline } = await getServerPipeline(toolCtx, mongodbUri, dbUrl, wsUrl)
+            const { pipeline } = await getServerPipeline(toolCtx, txes, mongodbUri, dbUrl, wsUrl)
 
             await migrateMarkup(toolCtx, adapter, wsId, client, pipeline, parseInt(cmd.concurrency))
 
diff --git a/dev/tool/src/markup.ts b/dev/tool/src/markup.ts
index 48f79b1131..837a0cb7f9 100644
--- a/dev/tool/src/markup.ts
+++ b/dev/tool/src/markup.ts
@@ -15,7 +15,7 @@ import core, {
 } from '@hcengineering/core'
 import { getMongoClient, getWorkspaceDB } from '@hcengineering/mongo'
 import { type Pipeline, type StorageAdapter } from '@hcengineering/server-core'
-import { connect, fetchModel } from '@hcengineering/server-tool'
+import { connect } from '@hcengineering/server-tool'
 import { jsonToText, markupToYDoc } from '@hcengineering/text'
 import { type Db, type FindCursor, type MongoClient } from 'mongodb'
 
@@ -123,7 +123,7 @@ export async function migrateMarkup (
   pipeline: Pipeline,
   concurrency: number
 ): Promise<void> {
-  const { hierarchy } = await fetchModel(ctx, pipeline)
+  const hierarchy = pipeline.context.hierarchy
 
   const workspaceDb = client.db(workspaceId.name)
 
diff --git a/pods/backup/package.json b/pods/backup/package.json
index f3c10469ef..98fe4a9746 100644
--- a/pods/backup/package.json
+++ b/pods/backup/package.json
@@ -57,6 +57,7 @@
     "dotenv": "~16.0.0",
     "@hcengineering/backup-service": "^0.6.0",
     "@hcengineering/analytics": "^0.6.0",
-    "@hcengineering/analytics-service": "^0.6.0"
+    "@hcengineering/analytics-service": "^0.6.0",
+    "@hcengineering/model-all": "^0.6.0"
   }
 }
diff --git a/pods/backup/src/index.ts b/pods/backup/src/index.ts
index c2ec43a82e..e746f59e23 100644
--- a/pods/backup/src/index.ts
+++ b/pods/backup/src/index.ts
@@ -16,12 +16,19 @@
 import { Analytics } from '@hcengineering/analytics'
 import { configureAnalytics, SplitLogger } from '@hcengineering/analytics-service'
 import { startBackup } from '@hcengineering/backup-service'
-import { MeasureMetricsContext, metricsToString, newMetrics } from '@hcengineering/core'
+import { MeasureMetricsContext, metricsToString, newMetrics, type Tx } from '@hcengineering/core'
 import { type PipelineFactory } from '@hcengineering/server-core'
 import { createBackupPipeline, getConfig } from '@hcengineering/server-pipeline'
 import { writeFile } from 'fs/promises'
 import { join } from 'path'
 
+import builder from '@hcengineering/model-all'
+
+const enabled = (process.env.MODEL_ENABLED ?? '*').split(',').map((it) => it.trim())
+const disabled = (process.env.MODEL_DISABLED ?? '').split(',').map((it) => it.trim())
+
+const model = JSON.parse(JSON.stringify(builder(enabled, disabled).getTxes())) as Tx[]
+
 const metricsContext = new MeasureMetricsContext(
   'backup',
   {},
@@ -58,7 +65,7 @@ const onClose = (): void => {
 startBackup(
   metricsContext,
   (mongoUrl, storageAdapter) => {
-    const factory: PipelineFactory = createBackupPipeline(metricsContext, mongoUrl, {
+    const factory: PipelineFactory = createBackupPipeline(metricsContext, mongoUrl, model, {
       externalStorage: storageAdapter,
       usePassedCtx: true
     })
diff --git a/pods/server/package.json b/pods/server/package.json
index 5832863572..0eca82cf0b 100644
--- a/pods/server/package.json
+++ b/pods/server/package.json
@@ -72,6 +72,7 @@
     "@hcengineering/server-telegram": "^0.6.0",
     "@hcengineering/pod-telegram-bot": "^0.6.0",
     "@hcengineering/server-ai-bot": "^0.6.0",
-    "@hcengineering/server-ai-bot-resources": "^0.6.0"
+    "@hcengineering/server-ai-bot-resources": "^0.6.0",
+    "@hcengineering/model-all": "^0.6.0"
   }
 }
diff --git a/pods/server/src/server.ts b/pods/server/src/server.ts
index 69204afc3f..4a71e2921a 100644
--- a/pods/server/src/server.ts
+++ b/pods/server/src/server.ts
@@ -14,7 +14,7 @@
 // limitations under the License.
 //
 
-import { type Branding, type BrandingMap, type WorkspaceIdWithUrl } from '@hcengineering/core'
+import { type Branding, type BrandingMap, type Tx, type WorkspaceIdWithUrl } from '@hcengineering/core'
 import { buildStorageFromConfig, getMetricsContext } from '@hcengineering/server'
 
 import { ClientSession, startSessionManager, type ServerFactory, type Session } from '@hcengineering/server'
@@ -25,6 +25,13 @@ import { serverAiBotId } from '@hcengineering/server-ai-bot'
 import { createAIBotAdapter } from '@hcengineering/server-ai-bot-resources'
 import { createServerPipeline, registerServerPlugins, registerStringLoaders } from '@hcengineering/server-pipeline'
 
+import builder from '@hcengineering/model-all'
+
+const enabled = (process.env.MODEL_ENABLED ?? '*').split(',').map((it) => it.trim())
+const disabled = (process.env.MODEL_DISABLED ?? '').split(',').map((it) => it.trim())
+
+const model = JSON.parse(JSON.stringify(builder(enabled, disabled).getTxes())) as Tx[]
+
 registerStringLoaders()
 
 /**
@@ -64,6 +71,7 @@ export function start (
   const pipelineFactory = createServerPipeline(
     metrics,
     dbUrls,
+    model,
     { ...opt, externalStorage, adapterSecurity: rawDbUrl !== undefined },
     {
       serviceAdapters: {
diff --git a/server/middleware/src/model.ts b/server/middleware/src/model.ts
index 546c94017e..100b472c88 100644
--- a/server/middleware/src/model.ts
+++ b/server/middleware/src/model.ts
@@ -14,14 +14,22 @@
 //
 
 import core, {
+  type Doc,
   type LoadModelResponse,
   type MeasureContext,
   type Timestamp,
   type Tx,
+  type TxCUD,
   DOMAIN_TX
 } from '@hcengineering/core'
 import { PlatformError, unknownError } from '@hcengineering/platform'
-import type { Middleware, PipelineContext, TxAdapter, TxMiddlewareResult } from '@hcengineering/server-core'
+import type {
+  Middleware,
+  MiddlewareCreator,
+  PipelineContext,
+  TxAdapter,
+  TxMiddlewareResult
+} from '@hcengineering/server-core'
 import { BaseMiddleware } from '@hcengineering/server-core'
 import crypto from 'node:crypto'
 
@@ -34,20 +42,46 @@ export class ModelMiddleware extends BaseMiddleware implements Middleware {
   lastHashResponse!: Promise<LoadModelResponse>
   model!: Tx[]
 
-  static async create (ctx: MeasureContext, context: PipelineContext, next?: Middleware): Promise<Middleware> {
-    const middleware = new ModelMiddleware(context, next)
+  constructor (
+    context: PipelineContext,
+    next: Middleware | undefined,
+    readonly systemTx: Tx[]
+  ) {
+    super(context, next)
+  }
+
+  static async doCreate (
+    ctx: MeasureContext,
+    context: PipelineContext,
+    next: Middleware | undefined,
+    systemTx: Tx[]
+  ): Promise<Middleware> {
+    const middleware = new ModelMiddleware(context, next, systemTx)
     await middleware.init(ctx)
     return middleware
   }
 
+  static create (tx: Tx[]): MiddlewareCreator {
+    return (ctx, context, next) => {
+      return this.doCreate(ctx, context, next, tx)
+    }
+  }
+
   async init (ctx: MeasureContext): Promise<void> {
     if (this.context.adapterManager == null) {
       throw new PlatformError(unknownError('Adapter manager should be configured'))
     }
     const txAdapter = this.context.adapterManager.getAdapter(DOMAIN_TX, true) as TxAdapter
 
+    const isUserTx = (it: Tx): boolean =>
+      it.modifiedBy !== core.account.System ||
+      (it as TxCUD<Doc>).objectClass === 'contact:class:Person' ||
+      (it as TxCUD<Doc>).objectClass === 'contact:class:PersonAccount'
+
     this.model = await ctx.with('get-model', {}, async (ctx) => {
-      const model = await ctx.with('fetch-model', {}, (ctx) => txAdapter.getModel(ctx))
+      const allUserTxes = await ctx.with('fetch-model', {}, (ctx) => txAdapter.getModel(ctx))
+      const userTxes = allUserTxes.filter((it) => isUserTx(it))
+      const model = this.systemTx.concat(userTxes)
       for (const tx of model) {
         try {
           this.context.hierarchy.tx(tx)
@@ -55,7 +89,7 @@ export class ModelMiddleware extends BaseMiddleware implements Middleware {
           ctx.warn('failed to apply model transaction, skipping', { tx: JSON.stringify(tx), err })
         }
       }
-      this.context.modelDb.addTxes(ctx, model, false)
+      this.context.modelDb.addTxes(ctx, model, true)
       return model
     })
 
diff --git a/server/mongo/src/storage.ts b/server/mongo/src/storage.ts
index 35adf636f6..0d858d3160 100644
--- a/server/mongo/src/storage.ts
+++ b/server/mongo/src/storage.ts
@@ -1174,7 +1174,9 @@ abstract class MongoAdapterBase implements DbAdapter {
 
   async clean (ctx: MeasureContext, domain: Domain, docs: Ref<Doc>[]): Promise<void> {
     await ctx.with('clean', {}, async () => {
-      await this.db.collection<Doc>(domain).deleteMany({ _id: { $in: docs } })
+      if (docs.length > 0) {
+        await this.db.collection<Doc>(domain).deleteMany({ _id: { $in: docs } })
+      }
     })
   }
 }
@@ -1693,7 +1695,7 @@ class MongoTxAdapter extends MongoAdapterBase implements TxAdapter {
       )
     }
     model.forEach((tx) => (tx.modifiedBy === core.account.System && !isPersonAccount(tx) ? systemTx : userTx).push(tx))
-    return systemTx.concat(userTx)
+    return this.stripHash(systemTx.concat(userTx)) as Tx[]
   }
 }
 
diff --git a/server/mongo/src/utils.ts b/server/mongo/src/utils.ts
index 6292bf003a..f6cba52b5b 100644
--- a/server/mongo/src/utils.ts
+++ b/server/mongo/src/utils.ts
@@ -169,6 +169,7 @@ export class DBCollectionHelper implements DomainHelperOperations {
   }
 
   async init (domain?: Domain): Promise<void> {
+    // Check and create DB if missin
     if (domain === undefined) {
       // Init existing collecfions
       for (const c of (await this.db.listCollections({}, { nameOnly: true }).toArray()).map((it) => it.name)) {
diff --git a/server/server-pipeline/src/pipeline.ts b/server/server-pipeline/src/pipeline.ts
index 52c62fe1c5..f2592c4c75 100644
--- a/server/server-pipeline/src/pipeline.ts
+++ b/server/server-pipeline/src/pipeline.ts
@@ -10,6 +10,7 @@ import {
   ModelDb,
   type Branding,
   type MeasureContext,
+  type Tx,
   type WorkspaceIdWithUrl
 } from '@hcengineering/core'
 import { createElasticAdapter, createElasticBackupDataAdapter } from '@hcengineering/elastic'
@@ -99,6 +100,7 @@ export function getTxAdapterFactory (
 export function createServerPipeline (
   metrics: MeasureContext,
   dbUrls: string,
+  model: Tx[],
   opt: {
     fullTextUrl: string
     rekoniUrl: string
@@ -137,7 +139,7 @@ export function createServerPipeline (
       DomainFindMiddleware.create,
       DomainTxMiddleware.create,
       DBAdapterInitMiddleware.create,
-      ModelMiddleware.create,
+      ModelMiddleware.create(model),
       DBAdapterMiddleware.create(conf), // Configure DB adapters
       BroadcastMiddleware.create(broadcast)
     ]
@@ -162,6 +164,7 @@ export function createServerPipeline (
 export function createBackupPipeline (
   metrics: MeasureContext,
   dbUrls: string,
+  systemTx: Tx[],
   opt: {
     usePassedCtx?: boolean
     adapterSecurity?: boolean
@@ -206,7 +209,7 @@ export function createBackupPipeline (
       ContextNameMiddleware.create,
       DomainFindMiddleware.create,
       DBAdapterInitMiddleware.create,
-      ModelMiddleware.create,
+      ModelMiddleware.create(systemTx),
       DBAdapterMiddleware.create(conf)
     ]
 
@@ -225,6 +228,7 @@ export function createBackupPipeline (
 
 export async function getServerPipeline (
   ctx: MeasureContext,
+  model: Tx[],
   mongodbUri: string,
   dbUrl: string | undefined,
   wsUrl: WorkspaceIdWithUrl
@@ -240,6 +244,7 @@ export async function getServerPipeline (
   const pipelineFactory = createServerPipeline(
     ctx,
     dbUrls,
+    model,
     {
       externalStorage: storageAdapter,
       fullTextUrl: 'http://localhost:9200',
diff --git a/server/tool/src/index.ts b/server/tool/src/index.ts
index 23aefeba97..0f162b6bc3 100644
--- a/server/tool/src/index.ts
+++ b/server/tool/src/index.ts
@@ -36,15 +36,16 @@ import core, {
   WorkspaceId,
   WorkspaceIdWithUrl,
   type Doc,
+  type Ref,
   type TxCUD
 } from '@hcengineering/core'
 import { consoleModelLogger, MigrateOperation, ModelLogger, tryMigrate } from '@hcengineering/model'
 import {
   AggregatorStorageAdapter,
-  DbAdapter,
   DomainIndexHelperImpl,
   Pipeline,
-  StorageAdapter
+  StorageAdapter,
+  type DbAdapter
 } from '@hcengineering/server-core'
 import { connect } from './connect'
 import { InitScript, WorkspaceInitializer } from './initializer'
@@ -141,9 +142,16 @@ export async function initModel (
       logger.log('transactions deleted.', { workspaceId: workspaceId.name })
     }
 
-    logger.log('creating model...', workspaceId)
-    await adapter.upload(ctx, DOMAIN_TX, txes)
-    logger.log('model transactions inserted.', { count: txes.length })
+    logger.log('creating database...', workspaceId)
+    await adapter.upload(ctx, DOMAIN_TX, [
+      {
+        _class: core.class.Tx,
+        _id: 'first-tx' as Ref<Doc>,
+        modifiedBy: core.account.System,
+        modifiedOn: Date.now(),
+        space: core.space.DerivedTx
+      }
+    ])
 
     await progress(30)
 
@@ -264,11 +272,14 @@ export async function upgradeModel (
     throw Error('Model txes must target only core.space.Model')
   }
 
-  const prevModel = await fetchModel(ctx, pipeline)
+  const newModelRes = await ctx.with('load-model', {}, (ctx) => pipeline.loadModel(ctx, 0))
+  const newModel = Array.isArray(newModelRes) ? newModelRes : newModelRes.transactions
+
+  const { hierarchy, modelDb, model } = await buildModel(ctx, newModel)
   const { migrateClient: preMigrateClient } = await prepareMigrationClient(
     pipeline,
-    prevModel.hierarchy,
-    prevModel.modelDb,
+    hierarchy,
+    modelDb,
     logger,
     storageAdapter,
     workspaceId
@@ -305,36 +316,9 @@ export async function upgradeModel (
     }
     logger.log('removing model...', { workspaceId: workspaceId.name })
     await progress(10)
-    const toRemove = await pipeline.findAll(ctx, core.class.Tx, {
-      objectSpace: core.space.Model,
-      modifiedBy: core.account.System,
-      objectClass: { $nin: [contact.class.PersonAccount, 'contact:class:EmployeeAccount'] }
-    })
-    await pipeline.context.lowLevelStorage.clean(
-      ctx,
-      DOMAIN_TX,
-      toRemove.map((p) => p._id)
-    )
-    logger.log('transactions deleted.', { workspaceId: workspaceId.name, count: toRemove.length })
-    logger.log('creating model...', { workspaceId: workspaceId.name })
-    await pipeline.context.lowLevelStorage.upload(ctx, DOMAIN_TX, txes)
-
     logger.log('model transactions inserted.', { workspaceId: workspaceId.name, count: txes.length })
     await progress(20)
   }
-  const newModel = [
-    ...txes,
-    ...Array.from(
-      prevModel.model.filter(
-        (it) =>
-          it.modifiedBy !== core.account.System ||
-          (it as TxCUD<Doc>).objectClass === contact.class.Person ||
-          (it as TxCUD<Doc>).objectClass === 'contact:class:PersonAccount'
-      )
-    )
-  ]
-
-  const { hierarchy, modelDb, model } = await fetchModel(ctx, pipeline, newModel)
   const { migrateClient, migrateState } = await prepareMigrationClient(
     pipeline,
     hierarchy,
@@ -383,6 +367,21 @@ export async function upgradeModel (
       {
         state: 'indexes-v4',
         func: upgradeIndexes
+      },
+      {
+        state: 'delete-model',
+        func: async (client) => {
+          const model = await client.find<Tx>(DOMAIN_TX, { objectSpace: core.space.Model })
+
+          // Ignore Employee accounts.
+          const isUserTx = (it: Tx): boolean =>
+            it.modifiedBy !== core.account.System ||
+            (it as TxCUD<Doc>).objectClass === 'contact:class:Person' ||
+            (it as TxCUD<Doc>).objectClass === 'contact:class:PersonAccount'
+
+          const toDelete = model.filter((it) => !isUserTx(it)).map((it) => it._id)
+          await client.deleteMany(DOMAIN_TX, { _id: { $in: toDelete } })
+        }
       }
     ])
   })
@@ -463,26 +462,20 @@ async function prepareMigrationClient (
   return { migrateClient, migrateState }
 }
 
-export async function fetchModel (
+export async function buildModel (
   ctx: MeasureContext,
-  pipeline: Pipeline,
-  model?: Tx[]
+  model: Tx[]
 ): Promise<{ hierarchy: Hierarchy, modelDb: ModelDb, model: Tx[] }> {
   const hierarchy = new Hierarchy()
   const modelDb = new ModelDb(hierarchy)
 
-  if (model === undefined) {
-    const res = await ctx.with('load-model', {}, (ctx) => pipeline.loadModel(ctx, 0))
-    model = Array.isArray(res) ? res : res.transactions
-  }
-
   ctx.withSync('build local model', {}, () => {
     for (const tx of model ?? []) {
       try {
         hierarchy.tx(tx)
       } catch (err: any) {}
     }
-    modelDb.addTxes(ctx, model as Tx[], false)
+    modelDb.addTxes(ctx, model, false)
   })
   return { hierarchy, modelDb, model: model ?? [] }
 }
diff --git a/server/workspace-service/src/ws-operations.ts b/server/workspace-service/src/ws-operations.ts
index cc32f0066e..06636e5123 100644
--- a/server/workspace-service/src/ws-operations.ts
+++ b/server/workspace-service/src/ws-operations.ts
@@ -163,6 +163,7 @@ export async function createWorkspace (
       const factory: PipelineFactory = createServerPipeline(
         ctx,
         dbUrls,
+        txes,
         {
           externalStorage: storageAdapter,
           fullTextUrl: 'http://localhost:9200',
@@ -288,7 +289,7 @@ export async function upgradeWorkspace (
   let pipeline: Pipeline | undefined
   let storageAdapter: StorageAdapter | undefined
   try {
-    ;({ pipeline, storageAdapter } = await getServerPipeline(ctx, mongodbUri, dbUrl, wsUrl))
+    ;({ pipeline, storageAdapter } = await getServerPipeline(ctx, txes, mongodbUri, dbUrl, wsUrl))
     const contextData = new SessionDataImpl(
       systemAccountEmail,
       'backup',