diff --git a/src/components/FileExplorer/index.tsx b/src/components/FileExplorer/index.tsx
index 548bb38..977ac90 100644
--- a/src/components/FileExplorer/index.tsx
+++ b/src/components/FileExplorer/index.tsx
@@ -7,7 +7,7 @@ import { PortalContext } from 'containers/PortalContext'
 import { RepoContext } from 'containers/RepoContext'
 import { platform } from 'platforms'
 import * as React from 'react'
-import { usePrevious } from 'react-use'
+import { usePrevious, useUpdateEffect } from 'react-use'
 import { cx } from 'utils/cx'
 import { run } from 'utils/general'
 import { useElementSize } from 'utils/hooks/useElementSize'
@@ -86,16 +86,24 @@ function LoadedFileExplorer({
   visibleNodesGenerator: VisibleNodesGenerator
   visibleNodes: VisibleNodes
 }) {
+  const config = useConfigs().value
+
   const [searchKey, updateSearchKey] = React.useState('')
   const searched = !!searchKey
   const onSearch = useOnSearch(updateSearchKey, visibleNodesGenerator)
   const { focusedNode, nodes, expandedNodes, depths, loading } = visibleNodes
 
+  // re-search when the compress option update
+  const { compressSingletonFolder } = config
+  useUpdateEffect(() => {
+    visibleNodesGenerator.setCompression(compressSingletonFolder)
+  }, [compressSingletonFolder])
+
   const {
     ref: filesRef,
     size: [, height],
   } = useElementSize<HTMLDivElement>()
-  const { compactFileTree } = useConfigs().value
+  const { compactFileTree } = config
   const {
     ref: scrollElementRef,
     onScroll,
diff --git a/src/utils/VisibleNodesGenerator/BaseLayer.ts b/src/utils/VisibleNodesGenerator/BaseLayer.ts
new file mode 100644
index 0000000..d4db586
--- /dev/null
+++ b/src/utils/VisibleNodesGenerator/BaseLayer.ts
@@ -0,0 +1,49 @@
+import { EventHub } from '../EventHub'
+import { findNode } from '../general'
+import { Options } from './index'
+
+function mergeNodes(target: TreeNode, source: TreeNode) {
+  for (const node of source.contents || []) {
+    const dup = target.contents?.find($node => $node.path === node.path)
+    if (dup) {
+      mergeNodes(dup, node)
+    } else {
+      if (!target.contents) target.contents = []
+      target.contents.push(node)
+    }
+  }
+}
+
+export class BaseLayer {
+  baseRoot: TreeNode
+  getTreeData: (path: string) => Async<TreeNode>
+  loading: Set<TreeNode['path']> = new Set()
+  defer: boolean
+
+  baseHub = new EventHub<{
+    emit: BaseLayer['baseRoot']
+    loadingChange: BaseLayer['loading']
+  }>()
+
+  constructor({ root, getTreeData, defer = false }: Options) {
+    this.baseRoot = root
+    this.getTreeData = getTreeData
+    this.defer = defer
+  }
+
+  loadTreeData = async (path: string) => {
+    const node = await findNode(this.baseRoot, path)
+    if (node && node.type !== 'tree') return node
+    if (node?.contents?.length) return node // check in memory
+    if (this.loading.has(path)) return
+
+    this.loading.add(path)
+    this.baseHub.emit('loadingChange', this.loading)
+    mergeNodes(this.baseRoot, await this.getTreeData(path))
+    this.loading.delete(path)
+    this.baseHub.emit('loadingChange', this.loading)
+    this.baseHub.emit('emit', this.baseRoot)
+
+    return await findNode(this.baseRoot, path)
+  }
+}
diff --git a/src/utils/VisibleNodesGenerator/CompressLayer.ts b/src/utils/VisibleNodesGenerator/CompressLayer.ts
new file mode 100644
index 0000000..226403f
--- /dev/null
+++ b/src/utils/VisibleNodesGenerator/CompressLayer.ts
@@ -0,0 +1,79 @@
+import { EventHub } from '../EventHub'
+import { withEffect } from '../general'
+import { Options } from './index'
+import { ShakeLayer } from './ShakeLayer'
+
+function compressTree(root: TreeNode, prefix: string[] = []): TreeNode {
+  if (root.contents) {
+    if (root.contents.length === 1) {
+      const [singleton] = root.contents
+      if (singleton.type === 'tree') {
+        return compressTree(singleton, [...prefix, root.name])
+      }
+    }
+
+    let compressed = false
+    const contents = []
+    for (const node of root.contents) {
+      const $node = compressTree(node)
+      if ($node !== node) compressed = true
+      contents.push($node)
+    }
+    if (compressed)
+      return {
+        ...root,
+        name: [...prefix, root.name].join('/'),
+        contents,
+      }
+  }
+  return prefix.length
+    ? {
+        ...root,
+        name: [...prefix, root.name].join('/'),
+      }
+    : root
+}
+
+export class CompressLayer extends ShakeLayer {
+  private compress: boolean
+  depths = new Map<TreeNode, number>()
+  compressedRoot: TreeNode | null = null
+  compressHub = new EventHub<{ emit: TreeNode | null }>()
+
+  constructor(options: Options) {
+    super(options)
+    this.compress = Boolean(options.compress)
+
+    this.shakeHub.addEventListener('emit', () => this.compressTree())
+  }
+
+  setCompression(compress: CompressLayer['compress']) {
+    this.compress = compress
+    this.compressTree()
+  }
+
+  private compressTree = withEffect(
+    () => {
+      this.compressedRoot =
+        this.compress && this.shackedRoot
+          ? {
+              ...this.shackedRoot,
+              contents: this.shackedRoot.contents?.map(node => compressTree(node)),
+            }
+          : this.shackedRoot
+
+      if (this.compressedRoot) {
+        const depths = new Map<TreeNode, number>()
+        const recordDepth = (node: TreeNode, depth = 0) => {
+          depths.set(node, depth)
+          for (const $node of node.contents || []) {
+            recordDepth($node, depth + 1)
+          }
+        }
+        recordDepth(this.compressedRoot, -1)
+        this.depths = depths
+      }
+    },
+    () => this.compressHub.emit('emit', this.compressedRoot),
+  )
+}
diff --git a/src/utils/VisibleNodesGenerator/FlattenLayer.ts b/src/utils/VisibleNodesGenerator/FlattenLayer.ts
new file mode 100644
index 0000000..f26c454
--- /dev/null
+++ b/src/utils/VisibleNodesGenerator/FlattenLayer.ts
@@ -0,0 +1,140 @@
+import { EventHub } from '../EventHub'
+import { findNode, traverse, withEffect } from '../general'
+import { CompressLayer } from './CompressLayer'
+import { Options, SearchParams } from './index'
+
+export class FlattenLayer extends CompressLayer {
+  focusedNode: TreeNode | null = null
+  nodes: TreeNode[] = []
+  expandedNodes: Set<TreeNode['path']> = new Set()
+  backupExpandedNodes: Set<TreeNode['path']> = new Set()
+  flattenHub = new EventHub<{ emit: null }>()
+
+  constructor(options: Options) {
+    super(options)
+
+    this.compressHub.addEventListener('emit', () => this.generateVisibleNodes())
+  }
+
+  generateVisibleNodes = withEffect(
+    async () => {
+      const nodes: TreeNode[] = []
+      const focusedNode = this.focusedNode
+
+      if (
+        focusedNode &&
+        this.compressedRoot &&
+        !(await findNode(this.compressedRoot, focusedNode.path))
+      ) {
+        // rescue the focus after expanding async singleton folder
+        await traverse(
+          this.compressedRoot.contents,
+          node => {
+            if (node.type === 'tree' && node.path.startsWith(focusedNode.path)) {
+              this.focusNode(node)
+            }
+
+            return node.type === 'tree' && this.expandedNodes.has(node.path)
+          },
+          node => node.contents || [],
+        )
+      }
+
+      await traverse(
+        this.compressedRoot?.contents,
+        node => {
+          nodes.push(node)
+          return node.type === 'tree' && this.expandedNodes.has(node.path)
+        },
+        node => node.contents || [],
+      )
+      this.nodes = nodes
+    },
+    () => this.flattenHub.emit('emit', null),
+  )
+
+  focusNode = (node: TreeNode | null) => {
+    if (this.focusedNode !== node) {
+      this.focusedNode = node
+      this.flattenHub.emit('emit', null)
+    }
+  }
+
+  barelySetExpand = (node: TreeNode, expand: boolean) => {
+    // expanding non-tree node could cause unexpected UX
+    if (node.type === 'tree') {
+      if (expand) this.expandedNodes.add(node.path)
+      else this.expandedNodes.delete(node.path)
+    }
+  }
+
+  $setExpand = (node: TreeNode, expand: boolean) => {
+    this.barelySetExpand(node, expand)
+    // The `node.contents?.length` condition is critical to search performance as it reduces lots of function calls
+    if (expand && node.type === 'tree' && !node.contents?.length)
+      return this.loadTreeData(node.path)
+  }
+  setExpand = withEffect(this.$setExpand, this.generateVisibleNodes)
+
+  toggleExpand = withEffect(async (node: TreeNode, recursive = false) => {
+    const expand = !this.expandedNodes.has(node.path)
+    await traverse(
+      [node],
+      node => {
+        this.$setExpand(node, expand)
+        return recursive
+      },
+      node => node.contents || [],
+    )
+  }, this.generateVisibleNodes)
+
+  expandTo = withEffect(async (path: string) => {
+    const rootNode = this.compressedRoot
+    if (rootNode) {
+      await traverse(
+        rootNode.contents,
+        async node => {
+          const overflowChar = path[node.path.length]
+          const match = path.startsWith(node.path) && (overflowChar === '/' || !overflowChar)
+          if (match) {
+            if (node.path === path) {
+              // do not wait for expansion for the exact node as that will block "jumping from search"
+              this.$setExpand(node, true)
+            } else await this.$setExpand(node, true)
+          }
+          return match
+        },
+        node => node?.contents || [],
+      )
+
+      const node = await findNode(rootNode, path)
+      return node
+    }
+  }, this.generateVisibleNodes)
+
+  search = (
+    searchParams: Pick<SearchParams, 'matchNode'> | null,
+    restoreExpandedFolders?: boolean,
+  ) => {
+    if (searchParams) {
+      if (!this.isSearching) {
+        // backup expansion when start search
+        this.backupExpandedNodes.clear()
+        this.expandedNodes.forEach(path => this.backupExpandedNodes.add(path))
+      }
+      this.expandedNodes.clear() // Reset expansion on every search, ensure cleanest search result expansion
+      this.shake({
+        matchNode: searchParams.matchNode,
+        onChildMatch: node => this.$setExpand(node, true),
+      })
+    } else {
+      this.shake(null)
+      // collapse all nodes on clearing search key
+      this.expandedNodes.clear()
+      if (restoreExpandedFolders) {
+        this.backupExpandedNodes.forEach(path => this.expandedNodes.add(path))
+        this.backupExpandedNodes.clear()
+      }
+    }
+  }
+}
diff --git a/src/utils/VisibleNodesGenerator/ShakeLayer.ts b/src/utils/VisibleNodesGenerator/ShakeLayer.ts
new file mode 100644
index 0000000..e85ab55
--- /dev/null
+++ b/src/utils/VisibleNodesGenerator/ShakeLayer.ts
@@ -0,0 +1,66 @@
+import { EventHub } from '../EventHub'
+import { withEffect } from '../general'
+import { BaseLayer } from './BaseLayer'
+import { Options, SearchParams } from './index'
+
+function search(
+  root: TreeNode,
+  match: (node: TreeNode) => boolean,
+  onChildMatch: (node: TreeNode) => void,
+): TreeNode | null {
+  // go traverse no matter whether root matches to make sure find & expand the related nodes
+  // The `related nodes` are the nodes that either itself matches or any of direct or indirect children match
+  const contents = []
+
+  if (root.type === 'tree' && root.contents) {
+    for (const node of root.contents) {
+      const $node = search(node, match, onChildMatch)
+      if ($node) contents.push($node)
+    }
+
+    if (contents.length) onChildMatch(root)
+  }
+
+  // Return root if itself matches
+  if (match(root)) return root
+
+  // Otherwise, but when deeper nodes match, return partial root
+  if (contents.length) {
+    return {
+      ...root,
+      contents,
+    }
+  }
+
+  return null
+}
+
+export class ShakeLayer extends BaseLayer {
+  shackedRoot: TreeNode | null = this.baseRoot
+  lastSearchParams: SearchParams | null = null
+  shakeHub = new EventHub<{ emit: TreeNode | null }>()
+
+  get isSearching() {
+    return this.lastSearchParams !== null
+  }
+
+  constructor(options: Options) {
+    super(options)
+
+    this.baseHub.addEventListener('emit', () => this.shake(this.lastSearchParams))
+  }
+
+  shake = withEffect(
+    (searchParams: ShakeLayer['lastSearchParams']) => {
+      this.lastSearchParams = searchParams
+
+      let root: ShakeLayer['shackedRoot'] = this.baseRoot
+      if (searchParams) {
+        const { matchNode, onChildMatch } = searchParams
+        root = search(this.baseRoot, matchNode, onChildMatch)
+      }
+      this.shackedRoot = root
+    },
+    () => this.shakeHub.emit('emit', this.shackedRoot),
+  )
+}
diff --git a/src/utils/VisibleNodesGenerator/index.ts b/src/utils/VisibleNodesGenerator/index.ts
index ae1202a..12f7fde 100644
--- a/src/utils/VisibleNodesGenerator/index.ts
+++ b/src/utils/VisibleNodesGenerator/index.ts
@@ -1,326 +1,14 @@
 import { EventHub } from '../EventHub'
-import { findNode, traverse, withEffect } from '../general'
-
-function search(
-  root: TreeNode,
-  match: (node: TreeNode) => boolean,
-  onChildMatch: (node: TreeNode) => void,
-): TreeNode | null {
-  // go traverse no matter whether root matches to make sure find & expand the related nodes
-  // The `related nodes` are the nodes that either itself matches or any of direct or indirect children match
-  const contents = []
-
-  if (root.type === 'tree' && root.contents) {
-    for (const node of root.contents) {
-      const $node = search(node, match, onChildMatch)
-      if ($node) contents.push($node)
-    }
-
-    if (contents.length) onChildMatch(root)
-  }
-
-  // Return root if itself matches
-  if (match(root)) return root
-
-  // Otherwise, but when deeper nodes match, return partial root
-  if (contents.length) {
-    return {
-      ...root,
-      contents,
-    }
-  }
-
-  return null
-}
-
-function compressTree(root: TreeNode, prefix: string[] = []): TreeNode {
-  if (root.contents) {
-    if (root.contents.length === 1) {
-      const [singleton] = root.contents
-      if (singleton.type === 'tree') {
-        return compressTree(singleton, [...prefix, root.name])
-      }
-    }
-
-    let compressed = false
-    const contents = []
-    for (const node of root.contents) {
-      const $node = compressTree(node)
-      if ($node !== node) compressed = true
-      contents.push($node)
-    }
-    if (compressed)
-      return {
-        ...root,
-        name: [...prefix, root.name].join('/'),
-        contents,
-      }
-  }
-  return prefix.length
-    ? {
-        ...root,
-        name: [...prefix, root.name].join('/'),
-      }
-    : root
-}
-
-function mergeNodes(target: TreeNode, source: TreeNode) {
-  for (const node of source.contents || []) {
-    const dup = target.contents?.find($node => $node.path === node.path)
-    if (dup) {
-      mergeNodes(dup, node)
-    } else {
-      if (!target.contents) target.contents = []
-      target.contents.push(node)
-    }
-  }
-}
-
-class BaseLayer {
-  baseRoot: TreeNode
-  getTreeData: (path: string) => Async<TreeNode>
-  loading: Set<TreeNode['path']> = new Set()
-  defer: boolean
-
-  baseHub = new EventHub<{
-    emit: BaseLayer['baseRoot']
-    loadingChange: BaseLayer['loading']
-  }>()
-
-  constructor({ root, getTreeData, defer = false }: Options) {
-    this.baseRoot = root
-    this.getTreeData = getTreeData
-    this.defer = defer
-  }
-
-  loadTreeData = async (path: string) => {
-    const node = await findNode(this.baseRoot, path)
-    if (node && node.type !== 'tree') return node
-    if (node?.contents?.length) return node // check in memory
-    if (this.loading.has(path)) return
-
-    this.loading.add(path)
-    this.baseHub.emit('loadingChange', this.loading)
-    mergeNodes(this.baseRoot, await this.getTreeData(path))
-    this.loading.delete(path)
-    this.baseHub.emit('loadingChange', this.loading)
-    this.baseHub.emit('emit', this.baseRoot)
-
-    return await findNode(this.baseRoot, path)
-  }
-}
-
-class ShakeLayer extends BaseLayer {
-  shackedRoot: TreeNode | null = this.baseRoot
-  lastSearchParams: SearchParams | null = null
-  shakeHub = new EventHub<{ emit: TreeNode | null }>()
-
-  get isSearching() {
-    return this.lastSearchParams !== null
-  }
-
-  constructor(options: Options) {
-    super(options)
-
-    this.baseHub.addEventListener('emit', () => this.shake(this.lastSearchParams))
-  }
-
-  shake = withEffect(
-    (searchParams: ShakeLayer['lastSearchParams']) => {
-      this.lastSearchParams = searchParams
-
-      let root: ShakeLayer['shackedRoot'] = this.baseRoot
-      if (searchParams) {
-        const { matchNode, onChildMatch } = searchParams
-        root = search(this.baseRoot, matchNode, onChildMatch)
-      }
-      this.shackedRoot = root
-    },
-    () => this.shakeHub.emit('emit', this.shackedRoot),
-  )
-}
-
-class CompressLayer extends ShakeLayer {
-  private compress: boolean
-  depths = new Map<TreeNode, number>()
-  compressedRoot: TreeNode | null = null
-  compressHub = new EventHub<{ emit: TreeNode | null }>()
-
-  constructor(options: Options) {
-    super(options)
-    this.compress = Boolean(options.compress)
-
-    this.shakeHub.addEventListener('emit', () => this.compressTree())
-  }
-
-  private compressTree = withEffect(
-    () => {
-      this.compressedRoot =
-        this.shackedRoot && this.compress
-          ? {
-              ...this.shackedRoot,
-              contents: this.shackedRoot.contents?.map(node => compressTree(node)),
-            }
-          : this.shackedRoot
-
-      if (this.compressedRoot) {
-        const depths = new Map<TreeNode, number>()
-        const recordDepth = (node: TreeNode, depth = 0) => {
-          depths.set(node, depth)
-          for (const $node of node.contents || []) {
-            recordDepth($node, depth + 1)
-          }
-        }
-        recordDepth(this.compressedRoot, -1)
-        this.depths = depths
-      }
-    },
-    () => this.compressHub.emit('emit', this.compressedRoot),
-  )
-}
+import { BaseLayer } from './BaseLayer'
+import { CompressLayer } from './CompressLayer'
+import { FlattenLayer } from './FlattenLayer'
 
 export type SearchParams = {
   matchNode(node: TreeNode): boolean
   onChildMatch(node: TreeNode): void
 }
 
-class FlattenLayer extends CompressLayer {
-  focusedNode: TreeNode | null = null
-  nodes: TreeNode[] = []
-  expandedNodes: Set<TreeNode['path']> = new Set()
-  backupExpandedNodes: Set<TreeNode['path']> = new Set()
-  flattenHub = new EventHub<{ emit: null }>()
-
-  constructor(options: Options) {
-    super(options)
-
-    this.compressHub.addEventListener('emit', () => this.generateVisibleNodes())
-  }
-
-  generateVisibleNodes = withEffect(
-    async () => {
-      const nodes: TreeNode[] = []
-      const focusedNode = this.focusedNode
-
-      if (
-        focusedNode &&
-        this.compressedRoot &&
-        !(await findNode(this.compressedRoot, focusedNode.path))
-      ) {
-        // rescue the focus after expanding async singleton folder
-        await traverse(
-          this.compressedRoot.contents,
-          node => {
-            if (node.type === 'tree' && node.path.startsWith(focusedNode.path)) {
-              this.focusNode(node)
-            }
-
-            return node.type === 'tree' && this.expandedNodes.has(node.path)
-          },
-          node => node.contents || [],
-        )
-      }
-
-      await traverse(
-        this.compressedRoot?.contents,
-        node => {
-          nodes.push(node)
-          return node.type === 'tree' && this.expandedNodes.has(node.path)
-        },
-        node => node.contents || [],
-      )
-      this.nodes = nodes
-    },
-    () => this.flattenHub.emit('emit', null),
-  )
-
-  focusNode = (node: TreeNode | null) => {
-    if (this.focusedNode !== node) {
-      this.focusedNode = node
-      this.flattenHub.emit('emit', null)
-    }
-  }
-
-  barelySetExpand = (node: TreeNode, expand: boolean) => {
-    // expanding non-tree node could cause unexpected UX
-    if (node.type === 'tree') {
-      if (expand) this.expandedNodes.add(node.path)
-      else this.expandedNodes.delete(node.path)
-    }
-  }
-
-  $setExpand = (node: TreeNode, expand: boolean) => {
-    this.barelySetExpand(node, expand)
-    // The `node.contents?.length` condition is critical to search performance as it reduces lots of function calls
-    if (expand && node.type === 'tree' && !node.contents?.length)
-      return this.loadTreeData(node.path)
-  }
-  setExpand = withEffect(this.$setExpand, this.generateVisibleNodes)
-
-  toggleExpand = withEffect(async (node: TreeNode, recursive = false) => {
-    const expand = !this.expandedNodes.has(node.path)
-    await traverse(
-      [node],
-      node => {
-        this.$setExpand(node, expand)
-        return recursive
-      },
-      node => node.contents || [],
-    )
-  }, this.generateVisibleNodes)
-
-  expandTo = withEffect(async (path: string) => {
-    const rootNode = this.compressedRoot
-    if (rootNode) {
-      await traverse(
-        rootNode.contents,
-        async node => {
-          const overflowChar = path[node.path.length]
-          const match = path.startsWith(node.path) && (overflowChar === '/' || !overflowChar)
-          if (match) {
-            if (node.path === path) {
-              // do not wait for expansion for the exact node as that will block "jumping from search"
-              this.$setExpand(node, true)
-            } else await this.$setExpand(node, true)
-          }
-          return match
-        },
-        node => node?.contents || [],
-      )
-
-      const node = await findNode(rootNode, path)
-      return node
-    }
-  }, this.generateVisibleNodes)
-
-  search = (
-    searchParams: Pick<SearchParams, 'matchNode'> | null,
-    restoreExpandedFolders?: boolean,
-  ) => {
-    if (searchParams) {
-      if (!this.isSearching) {
-        // backup expansion when start search
-        this.backupExpandedNodes.clear()
-        this.expandedNodes.forEach(path => this.backupExpandedNodes.add(path))
-      }
-      this.expandedNodes.clear() // Reset expansion on every search, ensure cleanest search result expansion
-      this.shake({
-        matchNode: searchParams.matchNode,
-        onChildMatch: node => this.$setExpand(node, true),
-      })
-    } else {
-      this.shake(null)
-      // collapse all nodes on clearing search key
-      this.expandedNodes.clear()
-      if (restoreExpandedFolders) {
-        this.backupExpandedNodes.forEach(path => this.expandedNodes.add(path))
-        this.backupExpandedNodes.clear()
-      }
-    }
-  }
-}
-
-type Options = {
+export type Options = {
   root: BaseLayer['baseRoot']
   defer?: BaseLayer['defer']
   getTreeData: BaseLayer['getTreeData']
@@ -339,6 +27,7 @@ export class VisibleNodesGenerator extends FlattenLayer {
   hub = new EventHub<{
     emit: VisibleNodes
   }>()
+
   constructor(options: Options) {
     super(options)