diff --git a/server/CircuitBuilder.ts b/server/CircuitBuilder.ts
index 60e3535..ade4d0e 100644
--- a/server/CircuitBuilder.ts
+++ b/server/CircuitBuilder.ts
@@ -1,5 +1,5 @@
 import { Basis } from './Basis'
-import { CircuitParts } from './CircuitParts'
+import type { CircuitParts } from './CircuitParts'
 import { Condenser } from './CircuitParts/Condenser'
 import { CPU } from './CircuitParts/CPU'
 import { GraphicBoard } from './CircuitParts/GraphicBoard'
@@ -11,7 +11,7 @@ import { TipSet } from './CircuitParts/TipSet'
 import { PowerSupply } from './CircuitParts/PowerSupply'
 import { Audio } from './CircuitParts/Audio'
 import { CircuitUtils } from './CircuitUtils'
-import { Genre, ServerResponse } from './ServerMain'
+import type { Genre, ServerResponse } from './ServerMain'
 
 export class CircuitBuilder {
   //単位提出数(subUnit毎に一つパーツがおかれる)
diff --git a/server/CircuitParts.ts b/server/CircuitParts.ts
index 7be75e0..d4009c7 100644
--- a/server/CircuitParts.ts
+++ b/server/CircuitParts.ts
@@ -1,4 +1,4 @@
-import { Genre } from './ServerMain'
+import type { Genre } from './ServerMain'
 
 export abstract class CircuitParts {
   public sizeX = 0
diff --git a/server/CircuitParts/Audio.ts b/server/CircuitParts/Audio.ts
index 823e211..509858d 100644
--- a/server/CircuitParts/Audio.ts
+++ b/server/CircuitParts/Audio.ts
@@ -1,5 +1,5 @@
 import { CircuitParts } from '../CircuitParts'
-import { Genre } from '../ServerMain'
+import type { Genre } from '../ServerMain'
 export class Audio extends CircuitParts {
   public sizeX = 5
   public sizeY = 2
diff --git a/server/CircuitParts/Condenser.ts b/server/CircuitParts/Condenser.ts
index c6ff847..4a036a0 100644
--- a/server/CircuitParts/Condenser.ts
+++ b/server/CircuitParts/Condenser.ts
@@ -1,5 +1,5 @@
 import { CircuitParts } from '../CircuitParts'
-import { Genre } from '../ServerMain'
+import type { Genre } from '../ServerMain'
 export class Condenser extends CircuitParts {
   public sizeX = 1
   public sizeY = 7
diff --git a/server/CircuitParts/GraphicBoard.ts b/server/CircuitParts/GraphicBoard.ts
index 6f69a23..b612acc 100644
--- a/server/CircuitParts/GraphicBoard.ts
+++ b/server/CircuitParts/GraphicBoard.ts
@@ -1,5 +1,5 @@
 import { CircuitParts } from '../CircuitParts'
-import { Genre } from '../ServerMain'
+import type { Genre } from '../ServerMain'
 export class GraphicBoard extends CircuitParts {
   public sizeX = 1
   public sizeY = 6
diff --git a/server/CircuitParts/HDD.ts b/server/CircuitParts/HDD.ts
index e4ff642..68e39ea 100644
--- a/server/CircuitParts/HDD.ts
+++ b/server/CircuitParts/HDD.ts
@@ -1,5 +1,5 @@
 import { CircuitParts } from '../CircuitParts'
-import { Genre } from '../ServerMain'
+import type { Genre } from '../ServerMain'
 export class HDD extends CircuitParts {
   public sizeX = 4
   public sizeY = 2
diff --git a/server/CircuitParts/Memory.ts b/server/CircuitParts/Memory.ts
index d3290db..cbde6fa 100644
--- a/server/CircuitParts/Memory.ts
+++ b/server/CircuitParts/Memory.ts
@@ -1,5 +1,5 @@
 import { CircuitParts } from '../CircuitParts'
-import { Genre } from '../ServerMain'
+import type { Genre } from '../ServerMain'
 export class Memory extends CircuitParts {
   public sizeX = 8
   public sizeY = 4
diff --git a/server/CircuitParts/Ports.ts b/server/CircuitParts/Ports.ts
index af3bef6..0405d50 100644
--- a/server/CircuitParts/Ports.ts
+++ b/server/CircuitParts/Ports.ts
@@ -1,5 +1,5 @@
 import { CircuitParts } from '../CircuitParts'
-import { Genre } from '../ServerMain'
+import type { Genre } from '../ServerMain'
 export class Ports extends CircuitParts {
   public sizeX = 2
   public sizeY = 3
diff --git a/server/CircuitParts/PowerSupply.ts b/server/CircuitParts/PowerSupply.ts
index c11f324..696c642 100644
--- a/server/CircuitParts/PowerSupply.ts
+++ b/server/CircuitParts/PowerSupply.ts
@@ -1,5 +1,5 @@
 import { CircuitParts } from '../CircuitParts'
-import { Genre } from '../ServerMain'
+import type { Genre } from '../ServerMain'
 export class PowerSupply extends CircuitParts {
   public sizeX = 3
   public sizeY = 2
diff --git a/server/CircuitParts/SSD.ts b/server/CircuitParts/SSD.ts
index 89c5204..42f3113 100644
--- a/server/CircuitParts/SSD.ts
+++ b/server/CircuitParts/SSD.ts
@@ -1,5 +1,5 @@
 import { CircuitParts } from '../CircuitParts'
-import { Genre } from '../ServerMain'
+import type { Genre } from '../ServerMain'
 export class SSD extends CircuitParts {
   public sizeX = 6
   public sizeY = 5
diff --git a/server/CircuitParts/TipSet.ts b/server/CircuitParts/TipSet.ts
index c947649..f687abb 100644
--- a/server/CircuitParts/TipSet.ts
+++ b/server/CircuitParts/TipSet.ts
@@ -1,5 +1,5 @@
 import { CircuitParts } from '../CircuitParts'
-import { Genre } from '../ServerMain'
+import type { Genre } from '../ServerMain'
 export class TipSet extends CircuitParts {
   public sizeX = 2
   public sizeY = 2
diff --git a/server/CircuitUtils.ts b/server/CircuitUtils.ts
index afd2163..a220535 100644
--- a/server/CircuitUtils.ts
+++ b/server/CircuitUtils.ts
@@ -1,4 +1,4 @@
-import {
+import type {
   CircuitServerBasisInfo,
   CircuitServerPartsInfo,
   CircuitServerWiresInfo