diff --git a/package.json b/package.json
index c98d27449d..8341d032f7 100644
--- a/package.json
+++ b/package.json
@@ -127,8 +127,9 @@
     "@jsonjoy.com/util": "^1.1.0",
     "arg": "^5.0.2",
     "hyperdyperid": "^1.2.0",
-    "sonic-forest": "^1.0.0",
-    "thingies": "^2.0.0"
+    "sonic-forest": "^1.0.2",
+    "thingies": "^2.0.0",
+    "tree-dump": "^1.0.0"
   },
   "devDependencies": {
     "@types/benchmark": "^2.1.5",
@@ -148,13 +149,6 @@
     "typescript": "^5.4.5"
   },
   "jest": {
-    "verbose": true,
-    "testEnvironmentOptions": {
-      "url": "http://localhost/"
-    },
-    "setupFiles": [
-      "<rootDir>/src/__tests__/setup.js"
-    ],
     "moduleFileExtensions": [
       "ts",
       "js"
diff --git a/src/__tests__/setup.js b/src/__tests__/setup.js
deleted file mode 100644
index e265fa1747..0000000000
--- a/src/__tests__/setup.js
+++ /dev/null
@@ -1,2 +0,0 @@
-// Jest setup.
-process.env.JEST = true;
diff --git a/src/json-crdt-extensions/cnt/index.ts b/src/json-crdt-extensions/cnt/index.ts
index ecd6a96ece..b7363e07ab 100644
--- a/src/json-crdt-extensions/cnt/index.ts
+++ b/src/json-crdt-extensions/cnt/index.ts
@@ -1,12 +1,12 @@
 import {delayed} from '../../json-crdt-patch/builder/DelayedValueBuilder';
 import {ext} from '../../json-crdt/extensions';
 import {ExtensionId} from '../constants';
-import {printTree} from '../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {NodeApi} from '../../json-crdt/model/api/nodes';
 import type {ExtensionDefinition, ObjNode} from '../../json-crdt';
 import type {ITimestampStruct} from '../../json-crdt-patch/clock';
 import type {ExtensionJsonNode, JsonNode} from '../../json-crdt';
-import type {Printable} from '../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {ExtensionApi} from '../../json-crdt';
 
 const name = 'cnt';
diff --git a/src/json-crdt-extensions/mval/ValueMv.ts b/src/json-crdt-extensions/mval/ValueMv.ts
index d88af29160..ebaffc2818 100644
--- a/src/json-crdt-extensions/mval/ValueMv.ts
+++ b/src/json-crdt-extensions/mval/ValueMv.ts
@@ -1,8 +1,8 @@
 import {ArrNode} from '../../json-crdt/nodes/arr/ArrNode';
-import {printTree} from '../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import type {ITimestampStruct} from '../../json-crdt-patch/clock';
 import type {ExtensionJsonNode, JsonNode} from '../../json-crdt';
-import type {Printable} from '../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 
 export class ValueMv implements ExtensionJsonNode, Printable {
   public readonly id: ITimestampStruct;
diff --git a/src/json-crdt-extensions/peritext/Peritext.ts b/src/json-crdt-extensions/peritext/Peritext.ts
index 443a097e9c..e5cba361df 100644
--- a/src/json-crdt-extensions/peritext/Peritext.ts
+++ b/src/json-crdt-extensions/peritext/Peritext.ts
@@ -1,4 +1,4 @@
-import {printTree} from 'sonic-forest/lib/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {Anchor} from './rga/constants';
 import {Point} from './rga/Point';
 import {Range} from './rga/Range';
@@ -11,7 +11,7 @@ import {interval} from '../../json-crdt-patch/clock';
 import {CONST, updateNum} from '../../json-hash';
 import type {ITimestampStruct} from '../../json-crdt-patch/clock';
 import type {Model} from '../../json-crdt/model';
-import type {Printable} from '../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {StringChunk} from './util/types';
 import type {SliceType} from './types';
 import type {MarkerSlice} from './slice/MarkerSlice';
diff --git a/src/json-crdt-extensions/peritext/editor/Editor.ts b/src/json-crdt-extensions/peritext/editor/Editor.ts
index 5f5f654d99..56ac7a7d1a 100644
--- a/src/json-crdt-extensions/peritext/editor/Editor.ts
+++ b/src/json-crdt-extensions/peritext/editor/Editor.ts
@@ -6,7 +6,7 @@ import {PersistedSlice} from '../slice/PersistedSlice';
 import {Chars} from '../constants';
 import type {Range} from '../rga/Range';
 import type {Peritext} from '../Peritext';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {Point} from '../rga/Point';
 import type {SliceType} from '../types';
 import type {MarkerSlice} from '../slice/MarkerSlice';
diff --git a/src/json-crdt-extensions/peritext/overlay/MarkerOverlayPoint.ts b/src/json-crdt-extensions/peritext/overlay/MarkerOverlayPoint.ts
index 10d40d10b0..ed569c65e1 100644
--- a/src/json-crdt-extensions/peritext/overlay/MarkerOverlayPoint.ts
+++ b/src/json-crdt-extensions/peritext/overlay/MarkerOverlayPoint.ts
@@ -4,7 +4,7 @@ import type {Anchor} from '../rga/constants';
 import type {AbstractRga} from '../../../json-crdt/nodes/rga';
 import type {ITimestampStruct} from '../../../json-crdt-patch/clock';
 import type {MarkerSlice} from '../slice/MarkerSlice';
-import {printTree} from 'sonic-forest/lib/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 
 export class MarkerOverlayPoint extends OverlayPoint {
   /**
diff --git a/src/json-crdt-extensions/peritext/overlay/Overlay.ts b/src/json-crdt-extensions/peritext/overlay/Overlay.ts
index 21216ff46a..61967d7ca0 100644
--- a/src/json-crdt-extensions/peritext/overlay/Overlay.ts
+++ b/src/json-crdt-extensions/peritext/overlay/Overlay.ts
@@ -1,5 +1,5 @@
-import {printTree} from 'sonic-forest/lib/print/printTree';
-import {printBinary} from 'sonic-forest/lib/print/printBinary';
+import {printTree} from 'tree-dump/lib/printTree';
+import {printBinary} from 'tree-dump/lib/printBinary';
 import {first, insertLeft, insertRight, next, prev, remove} from 'sonic-forest/lib/util';
 import {splay} from 'sonic-forest/lib/splay/util';
 import {Anchor} from '../rga/constants';
@@ -12,7 +12,7 @@ import {CONST, updateNum} from '../../../json-hash';
 import {MarkerSlice} from '../slice/MarkerSlice';
 import type {Peritext} from '../Peritext';
 import type {Stateful} from '../types';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {MutableSlice, Slice} from '../slice/types';
 
 export class Overlay implements Printable, Stateful {
diff --git a/src/json-crdt-extensions/peritext/overlay/OverlayPoint.ts b/src/json-crdt-extensions/peritext/overlay/OverlayPoint.ts
index af8b785fc7..e0d8092c4f 100644
--- a/src/json-crdt-extensions/peritext/overlay/OverlayPoint.ts
+++ b/src/json-crdt-extensions/peritext/overlay/OverlayPoint.ts
@@ -1,10 +1,10 @@
 import {Point} from '../rga/Point';
 import {compare} from '../../../json-crdt-patch/clock';
 import {OverlayRef, OverlayRefSliceEnd, OverlayRefSliceStart} from './refs';
-import {printTree} from 'sonic-forest/lib/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import type {MarkerSlice} from '../slice/MarkerSlice';
 import type {HeadlessNode} from 'sonic-forest/lib/types';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {Slice} from '../slice/types';
 
 /**
diff --git a/src/json-crdt-extensions/peritext/rga/Point.ts b/src/json-crdt-extensions/peritext/rga/Point.ts
index 30eb117b30..ab87b70bab 100644
--- a/src/json-crdt-extensions/peritext/rga/Point.ts
+++ b/src/json-crdt-extensions/peritext/rga/Point.ts
@@ -4,7 +4,7 @@ import {ChunkSlice} from '../util/ChunkSlice';
 import {updateId} from '../../../json-crdt/hash';
 import type {AbstractRga, Chunk} from '../../../json-crdt/nodes/rga';
 import type {Stateful} from '../types';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 
 /**
  * A "point" in a rich-text Peritext document. It is a combination of a
diff --git a/src/json-crdt-extensions/peritext/rga/Range.ts b/src/json-crdt-extensions/peritext/rga/Range.ts
index 3759215c35..c779bc4018 100644
--- a/src/json-crdt-extensions/peritext/rga/Range.ts
+++ b/src/json-crdt-extensions/peritext/rga/Range.ts
@@ -2,7 +2,7 @@ import {Point} from './Point';
 import {Anchor} from './constants';
 import {updateNum} from '../../../json-hash';
 import type {ITimestampStruct} from '../../../json-crdt-patch/clock';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {AbstractRga, Chunk} from '../../../json-crdt/nodes/rga';
 import type {Stateful} from '../types';
 
diff --git a/src/json-crdt-extensions/peritext/slice/Cursor.ts b/src/json-crdt-extensions/peritext/slice/Cursor.ts
index 8d1ab3e45a..250499b4d8 100644
--- a/src/json-crdt-extensions/peritext/slice/Cursor.ts
+++ b/src/json-crdt-extensions/peritext/slice/Cursor.ts
@@ -1,7 +1,7 @@
 import {Point} from '../rga/Point';
 import {CursorAnchor, SliceBehavior, Tags} from './constants';
 import {Range} from '../rga/Range';
-import {printTree} from '../../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {updateNum} from '../../../json-hash';
 import type {ITimestampStruct} from '../../../json-crdt-patch/clock';
 import type {Peritext} from '../Peritext';
diff --git a/src/json-crdt-extensions/peritext/slice/PersistedSlice.ts b/src/json-crdt-extensions/peritext/slice/PersistedSlice.ts
index 5121fe64a5..f4c05c76c1 100644
--- a/src/json-crdt-extensions/peritext/slice/PersistedSlice.ts
+++ b/src/json-crdt-extensions/peritext/slice/PersistedSlice.ts
@@ -1,7 +1,7 @@
 import {Point} from '../rga/Point';
 import {Range} from '../rga/Range';
 import {updateNode} from '../../../json-crdt/hash';
-import {printTree} from '../../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {Anchor} from '../rga/constants';
 import {SliceHeaderMask, SliceHeaderShift, SliceBehavior, SliceTupleIndex} from './constants';
 import {CONST} from '../../../json-hash';
@@ -15,7 +15,7 @@ import type {ArrChunk} from '../../../json-crdt/nodes';
 import type {MutableSlice, SliceUpdateParams} from './types';
 import type {Peritext} from '../Peritext';
 import type {SliceDto, SliceType, Stateful} from '../types';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {AbstractRga} from '../../../json-crdt/nodes/rga';
 
 export class PersistedSlice<T = string> extends Range<T> implements MutableSlice<T>, Stateful, Printable {
diff --git a/src/json-crdt-extensions/peritext/slice/Slices.ts b/src/json-crdt-extensions/peritext/slice/Slices.ts
index 0c4f3f0a7f..37314019d9 100644
--- a/src/json-crdt-extensions/peritext/slice/Slices.ts
+++ b/src/json-crdt-extensions/peritext/slice/Slices.ts
@@ -1,18 +1,18 @@
+import {AvlMap} from 'sonic-forest/lib/avl/AvlMap';
+import {printTree} from 'tree-dump/lib/printTree';
 import {PersistedSlice} from './PersistedSlice';
 import {Timespan, compare, tss} from '../../../json-crdt-patch/clock';
 import {Range} from '../rga/Range';
 import {updateRga} from '../../../json-crdt/hash';
 import {CONST, updateNum} from '../../../json-hash';
-import {printTree} from '../../../util/print/printTree';
 import {SliceBehavior, SliceHeaderShift, SliceTupleIndex} from './constants';
 import {MarkerSlice} from './MarkerSlice';
 import {VecNode} from '../../../json-crdt/nodes';
-import {AvlMap} from 'sonic-forest/lib/avl/AvlMap';
 import type {Slice} from './types';
 import type {ITimespanStruct, ITimestampStruct} from '../../../json-crdt-patch/clock';
 import type {SliceType, Stateful} from '../types';
 import type {Peritext} from '../Peritext';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {ArrChunk, ArrNode} from '../../../json-crdt/nodes';
 
 export class Slices implements Stateful, Printable {
diff --git a/src/json-crdt-extensions/peritext/util/ChunkSlice.ts b/src/json-crdt-extensions/peritext/util/ChunkSlice.ts
index 67fe0a628a..8f775fb4e4 100644
--- a/src/json-crdt-extensions/peritext/util/ChunkSlice.ts
+++ b/src/json-crdt-extensions/peritext/util/ChunkSlice.ts
@@ -3,7 +3,7 @@ import {updateId} from '../../../json-crdt/hash';
 import {ITimestampStruct, Timestamp, toDisplayString} from '../../../json-crdt-patch/clock';
 import type {IChunkSlice} from './types';
 import type {Stateful} from '../types';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {Chunk} from '../../../json-crdt/nodes/rga';
 
 export class ChunkSlice<T = string> implements IChunkSlice<T>, Stateful, Printable {
diff --git a/src/json-crdt-patch/Patch.ts b/src/json-crdt-patch/Patch.ts
index a7b667e560..d7db35e185 100644
--- a/src/json-crdt-patch/Patch.ts
+++ b/src/json-crdt-patch/Patch.ts
@@ -2,7 +2,7 @@ import * as operations from './operations';
 import {ITimestampStruct, ts, toDisplayString} from './clock';
 import {SESSION} from './constants';
 import {encode, decode} from './codec/binary';
-import type {Printable} from '../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 
 /**
  * A union type of all possible JSON CRDT patch operations.
diff --git a/src/json-crdt-patch/types.ts b/src/json-crdt-patch/types.ts
index 3a09671b1d..ac21dbc201 100644
--- a/src/json-crdt-patch/types.ts
+++ b/src/json-crdt-patch/types.ts
@@ -1,4 +1,4 @@
-import type {Printable} from '../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {ITimestampStruct} from './clock';
 import type {JsonCrdtPatchMnemonic} from './codec/verbose';
 
diff --git a/src/json-crdt/extensions/Extensions.ts b/src/json-crdt/extensions/Extensions.ts
index 65143f027b..21183a1641 100644
--- a/src/json-crdt/extensions/Extensions.ts
+++ b/src/json-crdt/extensions/Extensions.ts
@@ -1,6 +1,6 @@
-import {printTree} from '../../util/print/printTree';
-import {Printable} from '../../util/print/types';
-import {ExtensionDefinition} from './types';
+import {printTree} from 'tree-dump/lib/printTree';
+import type {ExtensionDefinition} from './types';
+import type {Printable} from 'tree-dump/lib/types';
 
 export class Extensions implements Printable {
   protected readonly ext: Record<number, ExtensionDefinition> = {};
diff --git a/src/json-crdt/log/Log.ts b/src/json-crdt/log/Log.ts
index 388daf235d..24decd39a7 100644
--- a/src/json-crdt/log/Log.ts
+++ b/src/json-crdt/log/Log.ts
@@ -1,10 +1,10 @@
+import {AvlMap} from 'sonic-forest/lib/avl/AvlMap';
+import {first, next} from 'sonic-forest/lib/util';
 import {FanOutUnsubscribe} from 'thingies/lib/fanout';
+import {printTree} from 'tree-dump/lib/printTree';
 import {ITimestampStruct, Patch, compare} from '../../json-crdt-patch';
-import {printTree} from '../../util/print/printTree';
-import {AvlMap} from 'sonic-forest/lib/avl/AvlMap';
 import {Model} from '../model';
-import {first, next} from 'sonic-forest/lib/util';
-import type {Printable} from '../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {JsonNode} from '../nodes/types';
 
 /**
diff --git a/src/json-crdt/model/Model.ts b/src/json-crdt/model/Model.ts
index 9aaba10f9d..2889959ea8 100644
--- a/src/json-crdt/model/Model.ts
+++ b/src/json-crdt/model/Model.ts
@@ -8,11 +8,11 @@ import {ORIGIN, SESSION, SYSTEM_SESSION_TIME} from '../../json-crdt-patch/consta
 import {randomSessionId} from './util';
 import {RootNode, ValNode, VecNode, ObjNode, StrNode, BinNode, ArrNode} from '../nodes';
 import {SchemaToJsonNode} from '../schema/types';
-import {printTree} from '../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {Extensions} from '../extensions/Extensions';
 import {AvlMap} from 'sonic-forest/lib/avl/AvlMap';
 import type {JsonNode, JsonNodeView} from '../nodes/types';
-import type {Printable} from '../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {NodeBuilder} from '../../json-crdt-patch';
 import type {NodeApi} from './api/nodes';
 
diff --git a/src/json-crdt/model/api/nodes.ts b/src/json-crdt/model/api/nodes.ts
index cb46e21ece..1de93f8932 100644
--- a/src/json-crdt/model/api/nodes.ts
+++ b/src/json-crdt/model/api/nodes.ts
@@ -4,11 +4,11 @@ import {Path} from '../../../json-pointer';
 import {ObjNode, ArrNode, BinNode, ConNode, VecNode, ValNode, StrNode} from '../../nodes';
 import {ExtensionApi, ExtensionDefinition, ExtensionJsonNode} from '../../extensions/types';
 import {NodeEvents} from './NodeEvents';
-import {printTree} from '../../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import type {JsonNode, JsonNodeView} from '../../nodes';
 import type * as types from './proxy';
 import type {ModelApi} from './ModelApi';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {JsonNodeApi} from './types';
 
 export type ApiPath = string | number | Path | void;
diff --git a/src/json-crdt/nodes/arr/ArrNode.ts b/src/json-crdt/nodes/arr/ArrNode.ts
index 23977f0424..65499053ed 100644
--- a/src/json-crdt/nodes/arr/ArrNode.ts
+++ b/src/json-crdt/nodes/arr/ArrNode.ts
@@ -1,10 +1,10 @@
 import {AbstractRga, Chunk} from '../rga/AbstractRga';
 import {ITimestampStruct, tick} from '../../../json-crdt-patch/clock';
 import {Model} from '../../model';
-import {printBinary} from '../../../util/print/printBinary';
-import {printTree} from '../../../util/print/printTree';
+import {printBinary} from 'tree-dump/lib/printBinary';
+import {printTree} from 'tree-dump/lib/printTree';
 import type {JsonNode, JsonNodeView} from '..';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 
 type E = ITimestampStruct;
 
diff --git a/src/json-crdt/nodes/const/ConNode.ts b/src/json-crdt/nodes/const/ConNode.ts
index c729b856a8..51dd0f9fe9 100644
--- a/src/json-crdt/nodes/const/ConNode.ts
+++ b/src/json-crdt/nodes/const/ConNode.ts
@@ -1,6 +1,6 @@
 import {type ITimestampStruct, toDisplayString, Timestamp} from '../../../json-crdt-patch/clock';
 import type {JsonNode} from '../types';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 
 /**
  * Represents the `con` type of the JSON CRDT specification.
diff --git a/src/json-crdt/nodes/obj/ObjNode.ts b/src/json-crdt/nodes/obj/ObjNode.ts
index fb4ad60a68..e16f00cd3e 100644
--- a/src/json-crdt/nodes/obj/ObjNode.ts
+++ b/src/json-crdt/nodes/obj/ObjNode.ts
@@ -1,7 +1,7 @@
+import {printTree} from 'tree-dump/lib/printTree';
 import {compare, ITimestampStruct, toDisplayString} from '../../../json-crdt-patch/clock';
-import {printTree} from '../../../util/print/printTree';
 import type {Model} from '../../model';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type {JsonNode, JsonNodeView} from '..';
 
 /**
diff --git a/src/json-crdt/nodes/rga/AbstractRga.ts b/src/json-crdt/nodes/rga/AbstractRga.ts
index d8208e015e..1c81df4f92 100644
--- a/src/json-crdt/nodes/rga/AbstractRga.ts
+++ b/src/json-crdt/nodes/rga/AbstractRga.ts
@@ -13,8 +13,8 @@ import {rSplay, lSplay, llSplay, rrSplay, lrSplay, rlSplay} from 'sonic-forest/l
 import {splay2} from 'sonic-forest/lib/splay/util2';
 import {insert2, remove2} from 'sonic-forest/lib/util2';
 import {ORIGIN} from '../../../json-crdt-patch/constants';
-import {printTree} from '../../../util/print/printTree';
-import {printBinary} from '../../../util/print/printBinary';
+import {printTree} from 'tree-dump/lib/printTree';
+import {printBinary} from 'tree-dump/lib/printBinary';
 import {printOctets} from '@jsonjoy.com/util/lib/buffers/printOctets';
 
 /**
diff --git a/src/json-crdt/nodes/str/__tests__/StrNodeFuzzer.ts b/src/json-crdt/nodes/str/__tests__/StrNodeFuzzer.ts
index a3929bb29f..51cd702209 100644
--- a/src/json-crdt/nodes/str/__tests__/StrNodeFuzzer.ts
+++ b/src/json-crdt/nodes/str/__tests__/StrNodeFuzzer.ts
@@ -3,8 +3,7 @@ import {ITimespanStruct, ITimestampStruct, ClockVector, toDisplayString, ts} fro
 import {Fuzzer} from '@jsonjoy.com/util/lib/Fuzzer';
 import {randomSessionId} from '../../../model/util';
 import {StrNode} from '../StrNode';
-import {printTree} from '../../../../util/print/printTree';
-import {Printable} from '../../../../util/print/types';
+import {printTree, Printable} from 'tree-dump';
 
 const printOp = (op: Op) => {
   if ('content' in op) {
diff --git a/src/json-crdt/nodes/val/ValNode.ts b/src/json-crdt/nodes/val/ValNode.ts
index a518763c98..f1e51283bf 100644
--- a/src/json-crdt/nodes/val/ValNode.ts
+++ b/src/json-crdt/nodes/val/ValNode.ts
@@ -1,10 +1,10 @@
 import {compare, ITimestampStruct, toDisplayString} from '../../../json-crdt-patch/clock';
 import {SESSION} from '../../../json-crdt-patch/constants';
-import {printTree} from '../../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {UNDEFINED} from '../../model/Model';
 import type {JsonNode, JsonNodeView} from '..';
 import type {Model} from '../../model';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 
 /**
  * Represents a `val` JSON CRDT node, which is a Last-write-wins (LWW) register.
diff --git a/src/json-crdt/nodes/vec/VecNode.ts b/src/json-crdt/nodes/vec/VecNode.ts
index 1c79e0e34f..34751fe1b7 100644
--- a/src/json-crdt/nodes/vec/VecNode.ts
+++ b/src/json-crdt/nodes/vec/VecNode.ts
@@ -1,10 +1,10 @@
 import {ConNode} from '../const/ConNode';
 import {CRDT_CONSTANTS} from '../../constants';
-import {printTree} from '../../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {compare, ITimestampStruct, toDisplayString} from '../../../json-crdt-patch/clock';
 import type {Model} from '../../model';
 import type {JsonNode, JsonNodeView} from '..';
-import type {Printable} from '../../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 
 /**
  * Represents a `vec` JSON CRDT node, which is a LWW array.
diff --git a/src/json-crdt/nodes/vec/__tests__/VecNode-extension.spec.ts b/src/json-crdt/nodes/vec/__tests__/VecNode-extension.spec.ts
index ac2c032f63..e1a5011d48 100644
--- a/src/json-crdt/nodes/vec/__tests__/VecNode-extension.spec.ts
+++ b/src/json-crdt/nodes/vec/__tests__/VecNode-extension.spec.ts
@@ -1,6 +1,5 @@
 import {ITimestampStruct, delayed, s} from '../../../../json-crdt-patch';
-import {printTree} from '../../../../util/print/printTree';
-import {Printable} from '../../../../util/print/types';
+import {printTree, Printable} from 'tree-dump';
 import {ext} from '../../../extensions';
 import {ExtensionApi, ExtensionDefinition, ExtensionJsonNode} from '../../../extensions/types';
 import {Model, NodeApi} from '../../../model';
diff --git a/src/json-text/toTree.ts b/src/json-text/toTree.ts
index ebabb543ec..f05967406e 100644
--- a/src/json-text/toTree.ts
+++ b/src/json-text/toTree.ts
@@ -1,4 +1,4 @@
-import {printTree} from '../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {stringify} from './stringify';
 
 const isPrimitive = (value: unknown): boolean => typeof value !== 'object';
diff --git a/src/json-type-value/ObjectValue.ts b/src/json-type-value/ObjectValue.ts
index 6ef74b79f0..ffec779318 100644
--- a/src/json-type-value/ObjectValue.ts
+++ b/src/json-type-value/ObjectValue.ts
@@ -1,12 +1,12 @@
 import {Value} from './Value';
 import {toText} from '../json-type/typescript/toText';
 import {TypeSystem} from '../json-type/system/TypeSystem';
-import {printTree} from 'sonic-forest/lib/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import type {ResolveType} from '../json-type';
 import type * as classes from '../json-type/type';
 import type * as ts from '../json-type/typescript/types';
 import type {TypeBuilder} from '../json-type/type/TypeBuilder';
-import type {Printable} from 'sonic-forest/lib/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 
 export type UnObjectType<T> = T extends classes.ObjectType<infer U> ? U : never;
 export type UnObjectValue<T> = T extends ObjectValue<infer U> ? U : never;
diff --git a/src/json-type/system/TypeAlias.ts b/src/json-type/system/TypeAlias.ts
index 071cced893..67d2c5a113 100644
--- a/src/json-type/system/TypeAlias.ts
+++ b/src/json-type/system/TypeAlias.ts
@@ -1,11 +1,11 @@
-import {printTree} from '../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {ObjectType} from '../type/classes';
 import {toText} from '../typescript/toText';
 import {JsonSchemaGenericKeywords, JsonSchemaValueNode} from '../../json-schema';
 import {TypeExportContext} from './TypeExportContext';
 import type {TypeSystem} from '.';
 import type {Type} from '../type';
-import type {Printable} from '../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 import type * as ts from '../typescript/types';
 
 export class TypeAlias<K extends string, T extends Type> implements Printable {
diff --git a/src/json-type/system/TypeSystem.ts b/src/json-type/system/TypeSystem.ts
index 735170fcb1..bf3b9ae239 100644
--- a/src/json-type/system/TypeSystem.ts
+++ b/src/json-type/system/TypeSystem.ts
@@ -1,10 +1,10 @@
 import {TypeAlias} from './TypeAlias';
 import {TypeBuilder} from '../type/TypeBuilder';
 import {RefType} from '../type/classes';
-import {printTree} from '../../util/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import type {CustomValidator} from './types';
 import type {Type, TypeMap} from '../type';
-import type {Printable} from '../../util/print/types';
+import type {Printable} from 'tree-dump/lib/types';
 
 export class TypeSystem implements Printable {
   public readonly t = new TypeBuilder(this);
diff --git a/src/json-type/system/__tests__/TypeSystem.spec.ts b/src/json-type/system/__tests__/TypeSystem.spec.ts
index 69de1c8dfc..032ed57d59 100644
--- a/src/json-type/system/__tests__/TypeSystem.spec.ts
+++ b/src/json-type/system/__tests__/TypeSystem.spec.ts
@@ -17,31 +17,31 @@ describe('.toString()', () => {
       },
     });
     expect(system.toString()).toMatchInlineSnapshot(`
-      "TypeSystem
-      ├─ aliases
-      │  ├─ User0
-      │  │  └─ obj
-      │  │     ├─ "id":
-      │  │     │   └─ str
-      │  │     └─ "address"?:
-      │  │         └─ ref → [Address]
-      │  ├─ User1
-      │  │  └─ ref → [User0]
-      │  ├─ User
-      │  │  └─ ref → [User1]
-      │  ├─ Address0
-      │  │  └─ obj
-      │  │     ├─ "id":
-      │  │     │   └─ str
-      │  │     └─ "user"?:
-      │  │         └─ ref → [User]
-      │  ├─ Address1
-      │  │  └─ ref → [Address0]
-      │  └─ Address
-      │     └─ ref → [Address1]
-      │  
-      └─ validators
-         └─ "empty-string""
-    `);
+"TypeSystem
+├─ aliases
+│  ├─ User0
+│  │  └─ obj
+│  │     ├─ "id":
+│  │     │   └─ str
+│  │     └─ "address"?:
+│  │         └─ ref → [Address]
+│  ├─ User1
+│  │  └─ ref → [User0]
+│  ├─ User
+│  │  └─ ref → [User1]
+│  ├─ Address0
+│  │  └─ obj
+│  │     ├─ "id":
+│  │     │   └─ str
+│  │     └─ "user"?:
+│  │         └─ ref → [User]
+│  ├─ Address1
+│  │  └─ ref → [Address0]
+│  └─ Address
+│     └─ ref → [Address1]
+│
+└─ validators
+   └─ "empty-string""
+`);
   });
 });
diff --git a/src/json-type/type/classes/AbstractType.ts b/src/json-type/type/classes/AbstractType.ts
index a269328f93..9a982090e7 100644
--- a/src/json-type/type/classes/AbstractType.ts
+++ b/src/json-type/type/classes/AbstractType.ts
@@ -1,6 +1,6 @@
 import * as schema from '../../schema';
 import {RandomJson} from '../../../json-random';
-import {Printable} from '../../../util/print/types';
+import {Printable} from 'tree-dump/lib/types';
 import {ValidatorCodegenContext, ValidatorCodegenContextOptions} from '../../codegen/validator/ValidatorCodegenContext';
 import {JsonTypeValidator, ValidationPath} from '../../codegen/validator/types';
 import {
diff --git a/src/json-type/type/classes/ArrayType.ts b/src/json-type/type/classes/ArrayType.ts
index 803335eb02..76b25ae6f4 100644
--- a/src/json-type/type/classes/ArrayType.ts
+++ b/src/json-type/type/classes/ArrayType.ts
@@ -1,5 +1,7 @@
+import {JsExpression} from '@jsonjoy.com/util/lib/codegen/util/JsExpression';
+import {BinaryJsonEncoder} from '@jsonjoy.com/json-pack/lib/types';
+import {printTree} from 'tree-dump/lib/printTree';
 import * as schema from '../../schema';
-import {printTree} from '../../../util/print/printTree';
 import {validateMinMax, validateTType} from '../../schema/validate';
 import {ValidatorCodegenContext} from '../../codegen/validator/ValidatorCodegenContext';
 import {ValidationPath} from '../../codegen/validator/types';
@@ -8,9 +10,7 @@ import {JsonTextEncoderCodegenContext} from '../../codegen/json/JsonTextEncoderC
 import {CborEncoderCodegenContext} from '../../codegen/binary/CborEncoderCodegenContext';
 import {JsonEncoderCodegenContext} from '../../codegen/binary/JsonEncoderCodegenContext';
 import {BinaryEncoderCodegenContext} from '../../codegen/binary/BinaryEncoderCodegenContext';
-import {JsExpression} from '@jsonjoy.com/util/lib/codegen/util/JsExpression';
 import {MessagePackEncoderCodegenContext} from '../../codegen/binary/MessagePackEncoderCodegenContext';
-import {BinaryJsonEncoder} from '@jsonjoy.com/json-pack/lib/types';
 import {CapacityEstimatorCodegenContext} from '../../codegen/capacity/CapacityEstimatorCodegenContext';
 import {MaxEncodingOverhead} from '../../../json-size';
 import {AbstractType} from './AbstractType';
diff --git a/src/json-type/type/classes/BinaryType.ts b/src/json-type/type/classes/BinaryType.ts
index 2c99f2bfe5..06b0a1ae49 100644
--- a/src/json-type/type/classes/BinaryType.ts
+++ b/src/json-type/type/classes/BinaryType.ts
@@ -1,7 +1,9 @@
+import {JsExpression} from '@jsonjoy.com/util/lib/codegen/util/JsExpression';
+import {BinaryJsonEncoder} from '@jsonjoy.com/json-pack/lib/types';
+import {printTree} from 'tree-dump/lib/printTree';
 import * as schema from '../../schema';
 import {RandomJson} from '../../../json-random';
 import {stringifyBinary} from '../../../json-binary';
-import {printTree} from '../../../util/print/printTree';
 import {validateTType} from '../../schema/validate';
 import {ValidatorCodegenContext} from '../../codegen/validator/ValidatorCodegenContext';
 import {ValidationPath} from '../../codegen/validator/types';
@@ -10,9 +12,7 @@ import {JsonTextEncoderCodegenContext} from '../../codegen/json/JsonTextEncoderC
 import {CborEncoderCodegenContext} from '../../codegen/binary/CborEncoderCodegenContext';
 import {JsonEncoderCodegenContext} from '../../codegen/binary/JsonEncoderCodegenContext';
 import {BinaryEncoderCodegenContext} from '../../codegen/binary/BinaryEncoderCodegenContext';
-import {JsExpression} from '@jsonjoy.com/util/lib/codegen/util/JsExpression';
 import {MessagePackEncoderCodegenContext} from '../../codegen/binary/MessagePackEncoderCodegenContext';
-import {BinaryJsonEncoder} from '@jsonjoy.com/json-pack/lib/types';
 import {CapacityEstimatorCodegenContext} from '../../codegen/capacity/CapacityEstimatorCodegenContext';
 import {MaxEncodingOverhead} from '../../../json-size';
 import {AbstractType} from './AbstractType';
diff --git a/src/json-type/type/classes/FunctionType.ts b/src/json-type/type/classes/FunctionType.ts
index 15cfb5b2b0..98a3a8a9f8 100644
--- a/src/json-type/type/classes/FunctionType.ts
+++ b/src/json-type/type/classes/FunctionType.ts
@@ -1,5 +1,5 @@
+import {printTree} from 'tree-dump/lib/printTree';
 import * as schema from '../../schema';
-import {printTree} from '../../../util/print/printTree';
 import {validateTType} from '../../schema/validate';
 import {AbstractType} from './AbstractType';
 import type {SchemaOf, Type} from '../types';
diff --git a/src/json-type/type/classes/MapType.ts b/src/json-type/type/classes/MapType.ts
index ee5afb1f13..47a19b2c11 100644
--- a/src/json-type/type/classes/MapType.ts
+++ b/src/json-type/type/classes/MapType.ts
@@ -1,7 +1,9 @@
+import {JsExpression} from '@jsonjoy.com/util/lib/codegen/util/JsExpression';
+import {BinaryJsonEncoder} from '@jsonjoy.com/json-pack/lib/types';
+import {asString} from '@jsonjoy.com/util/lib/strings/asString';
+import {printTree} from 'tree-dump/lib/printTree';
 import * as schema from '../../schema';
 import {RandomJson} from '../../../json-random';
-import {printTree} from '../../../util/print/printTree';
-import {asString} from '@jsonjoy.com/util/lib/strings/asString';
 import {validateTType} from '../../schema/validate';
 import {ValidatorCodegenContext} from '../../codegen/validator/ValidatorCodegenContext';
 import {ValidationPath} from '../../codegen/validator/types';
@@ -10,9 +12,7 @@ import {JsonTextEncoderCodegenContext} from '../../codegen/json/JsonTextEncoderC
 import {CborEncoderCodegenContext} from '../../codegen/binary/CborEncoderCodegenContext';
 import {JsonEncoderCodegenContext} from '../../codegen/binary/JsonEncoderCodegenContext';
 import {BinaryEncoderCodegenContext} from '../../codegen/binary/BinaryEncoderCodegenContext';
-import {JsExpression} from '@jsonjoy.com/util/lib/codegen/util/JsExpression';
 import {MessagePackEncoderCodegenContext} from '../../codegen/binary/MessagePackEncoderCodegenContext';
-import {BinaryJsonEncoder} from '@jsonjoy.com/json-pack/lib/types';
 import {CapacityEstimatorCodegenContext} from '../../codegen/capacity/CapacityEstimatorCodegenContext';
 import {MaxEncodingOverhead} from '../../../json-size';
 import {AbstractType} from './AbstractType';
diff --git a/src/json-type/type/classes/ObjectType.ts b/src/json-type/type/classes/ObjectType.ts
index 44919e7227..75496a3d6b 100644
--- a/src/json-type/type/classes/ObjectType.ts
+++ b/src/json-type/type/classes/ObjectType.ts
@@ -1,17 +1,17 @@
+import {normalizeAccessor} from '@jsonjoy.com/util/lib/codegen/util/normalizeAccessor';
+import {JsExpression} from '@jsonjoy.com/util/lib/codegen/util/JsExpression';
+import {asString} from '@jsonjoy.com/util/lib/strings/asString';
+import {printTree} from 'tree-dump/lib/printTree';
 import * as schema from '../../schema';
 import {RandomJson} from '../../../json-random';
-import {printTree} from '../../../util/print/printTree';
-import {asString} from '@jsonjoy.com/util/lib/strings/asString';
 import {validateTType, validateWithValidator} from '../../schema/validate';
 import {ValidatorCodegenContext} from '../../codegen/validator/ValidatorCodegenContext';
 import {ValidationPath} from '../../codegen/validator/types';
 import {ValidationError} from '../../constants';
-import {normalizeAccessor} from '@jsonjoy.com/util/lib/codegen/util/normalizeAccessor';
 import {canSkipObjectKeyUndefinedCheck} from '../../codegen/validator/util';
 import {JsonTextEncoderCodegenContext} from '../../codegen/json/JsonTextEncoderCodegenContext';
 import {CborEncoderCodegenContext} from '../../codegen/binary/CborEncoderCodegenContext';
 import {JsonEncoderCodegenContext} from '../../codegen/binary/JsonEncoderCodegenContext';
-import {JsExpression} from '@jsonjoy.com/util/lib/codegen/util/JsExpression';
 import {MessagePackEncoderCodegenContext} from '../../codegen/binary/MessagePackEncoderCodegenContext';
 import {CapacityEstimatorCodegenContext} from '../../codegen/capacity/CapacityEstimatorCodegenContext';
 import {MaxEncodingOverhead, maxEncodingCapacity} from '../../../json-size';
diff --git a/src/json-type/type/classes/OrType.ts b/src/json-type/type/classes/OrType.ts
index 19cb15c352..3427310200 100644
--- a/src/json-type/type/classes/OrType.ts
+++ b/src/json-type/type/classes/OrType.ts
@@ -1,5 +1,5 @@
 import * as schema from '../../schema';
-import {printTree} from 'sonic-forest/lib/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {validateTType} from '../../schema/validate';
 import {ValidatorCodegenContext} from '../../codegen/validator/ValidatorCodegenContext';
 import {ValidationPath} from '../../codegen/validator/types';
diff --git a/src/json-type/type/classes/TupleType.ts b/src/json-type/type/classes/TupleType.ts
index eee33adb17..00ac27582d 100644
--- a/src/json-type/type/classes/TupleType.ts
+++ b/src/json-type/type/classes/TupleType.ts
@@ -1,5 +1,5 @@
 import * as schema from '../../schema';
-import {printTree} from 'sonic-forest/lib/print/printTree';
+import {printTree} from 'tree-dump/lib/printTree';
 import {validateTType} from '../../schema/validate';
 import {ValidatorCodegenContext} from '../../codegen/validator/ValidatorCodegenContext';
 import {ValidationPath} from '../../codegen/validator/types';
diff --git a/src/util/print/printBinary.ts b/src/util/print/printBinary.ts
deleted file mode 100644
index 08ce931e81..0000000000
--- a/src/util/print/printBinary.ts
+++ /dev/null
@@ -1 +0,0 @@
-export * from 'sonic-forest/lib/print/printBinary';
diff --git a/src/util/print/printTree.ts b/src/util/print/printTree.ts
deleted file mode 100644
index a6b90bbd4d..0000000000
--- a/src/util/print/printTree.ts
+++ /dev/null
@@ -1 +0,0 @@
-export * from 'sonic-forest/lib/print/printTree';
diff --git a/src/util/print/types.ts b/src/util/print/types.ts
deleted file mode 100644
index d84b391b6f..0000000000
--- a/src/util/print/types.ts
+++ /dev/null
@@ -1 +0,0 @@
-export * from 'sonic-forest/lib/print/types';
diff --git a/yarn.lock b/yarn.lock
index 383cabecbd..c63e597a4d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -955,7 +955,6 @@ concat-map@0.0.1:
 
 "config-housekeeping@https://github.com/streamich/housekeeping#3532d2abeac159315ddf403d70517859d079c801":
   version "0.0.0"
-  uid "3532d2abeac159315ddf403d70517859d079c801"
   resolved "https://github.com/streamich/housekeeping#3532d2abeac159315ddf403d70517859d079c801"
 
 convert-source-map@^2.0.0:
@@ -1019,7 +1018,6 @@ diff@^4.0.1:
 
 "editing-traces@https://github.com/streamich/editing-traces#6494020428530a6e382378b98d1d7e31334e2d7b":
   version "0.0.0"
-  uid "6494020428530a6e382378b98d1d7e31334e2d7b"
   resolved "https://github.com/streamich/editing-traces#6494020428530a6e382378b98d1d7e31334e2d7b"
 
 electron-to-chromium@^1.4.668:
@@ -1710,7 +1708,6 @@ jsesc@^2.5.1:
 
 "json-crdt-traces@https://github.com/streamich/json-crdt-traces#ec825401dc05cbb74b9e0b3c4d6527399f54d54d":
   version "0.0.1"
-  uid ec825401dc05cbb74b9e0b3c4d6527399f54d54d
   resolved "https://github.com/streamich/json-crdt-traces#ec825401dc05cbb74b9e0b3c4d6527399f54d54d"
 
 json-logic-js@^2.0.2:
@@ -2068,10 +2065,12 @@ slash@^3.0.0:
   resolved "https://registry.yarnpkg.com/slash/-/slash-3.0.0.tgz#6539be870c165adbd5240220dbe361f1bc4d4634"
   integrity sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==
 
-sonic-forest@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/sonic-forest/-/sonic-forest-1.0.0.tgz#b0b77d9bca76434f4ef87b61042d041da63f3be5"
-  integrity sha512-yFO2N4uTUFtgKLw03WWFpN1iEwZySweMsa18XN3Kt0yYrlmVHunC2ZgM+437zDoKISAJHcH3Cg18U7d6tuSgSQ==
+sonic-forest@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/sonic-forest/-/sonic-forest-1.0.2.tgz#d80aa621d1cffe75a606ca44789ccff30f5b9ce6"
+  integrity sha512-2rICdwIJi5kVlehMUVtJeHn3ohh5YZV4pDv0P0c1M11cRz/gXNViItpM94HQwfvnXuzybpqK0LZJgTa3lEwtAw==
+  dependencies:
+    tree-dump "^1.0.0"
 
 source-map-support@0.5.13:
   version "0.5.13"
@@ -2199,6 +2198,11 @@ to-regex-range@^5.0.1:
   dependencies:
     is-number "^7.0.0"
 
+tree-dump@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/tree-dump/-/tree-dump-1.0.0.tgz#bd5fdece2b36d888ae0d1cf316e653af3de656ea"
+  integrity sha512-gDLjiHO2JTBf8JtRNCq/tUYZMdI5EFOA3UKWZJddwqVxRjC8jj/tI/pJEocV0hPtJeztEcF2RqufJZYbF/rKEw==
+
 ts-jest@^29.1.2:
   version "29.1.2"
   resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-29.1.2.tgz#7613d8c81c43c8cb312c6904027257e814c40e09"