diff --git a/bin-src/register.js b/bin-src/register.js
index 5031bb954..ae9010b3b 100755
--- a/bin-src/register.js
+++ b/bin-src/register.js
@@ -5,7 +5,7 @@ import { config } from 'dotenv';
 import { main as initMain } from './init';
 import { main } from './main';
 import { main as traceMain } from './trace';
-import { main as trimMain } from './trim-stats-file';
+import { main as trimMain } from './trimStatsFile';
 
 config();
 
diff --git a/bin-src/trace.ts b/bin-src/trace.ts
index c6c314256..923b780c0 100644
--- a/bin-src/trace.ts
+++ b/bin-src/trace.ts
@@ -2,7 +2,7 @@ import meow from 'meow';
 
 import { getDependentStoryFiles } from '../node-src/lib/getDependentStoryFiles';
 import { isPackageManifestFile } from '../node-src/lib/utils';
-import { readStatsFile } from '../node-src/tasks/read-stats-file';
+import { readStatsFile } from '../node-src/tasks/readStatsFile';
 import { Context } from '../node-src/types';
 
 /**
diff --git a/bin-src/trim-stats-file.test.ts b/bin-src/trimStatsFile.test.ts
similarity index 90%
rename from bin-src/trim-stats-file.test.ts
rename to bin-src/trimStatsFile.test.ts
index ce8b67d40..3b7fd1d14 100644
--- a/bin-src/trim-stats-file.test.ts
+++ b/bin-src/trimStatsFile.test.ts
@@ -1,7 +1,7 @@
 import mockfs from 'mock-fs';
 import { afterEach, describe, expect, it } from 'vitest';
 
-import { readStatsFile } from '../node-src/tasks/read-stats-file';
+import { readStatsFile } from '../node-src/tasks/readStatsFile';
 import * as trimmedFile from './__mocks__/previewStatsJson/preview-stats.trimmed.json';
 
 mockfs({
diff --git a/bin-src/trim-stats-file.ts b/bin-src/trimStatsFile.ts
similarity index 96%
rename from bin-src/trim-stats-file.ts
rename to bin-src/trimStatsFile.ts
index 1ca30c4d3..e016a6e38 100644
--- a/bin-src/trim-stats-file.ts
+++ b/bin-src/trimStatsFile.ts
@@ -1,6 +1,6 @@
 import { outputFile } from 'fs-extra';
 
-import { readStatsFile } from '../node-src/tasks/read-stats-file';
+import { readStatsFile } from '../node-src/tasks/readStatsFile';
 
 const dedupe = <T>(array: T[]) => [...new Set(array)];
 const isUserCode = ({ name, moduleName = name }: { name?: string; moduleName?: string }) =>
diff --git a/eslint.config.mjs b/eslint.config.mjs
index deac13e00..871cd7c95 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -108,8 +108,19 @@ export default [
   unicorn.configs['flat/recommended'],
   {
     rules: {
-      // TODO: Switch this to 'error' when we are ready to enforce this rule
-      'unicorn/filename-case': ['off', { case: 'camelCase' }],
+      'unicorn/filename-case': [
+        'error',
+        {
+          case: 'camelCase',
+          ignore: [
+            // Allow capitalization in initialisms
+            String.raw`^.*DNS.*\.[jt]s$`,
+            String.raw`^.*CSF.*\.[jt]s$`,
+            String.raw`^.*TTY.*\.[jt]s$`,
+            String.raw`^.*CI.*\.[jt]s$`,
+          ],
+        },
+      ],
       // Chromatic uses err as our catch convention.
       // This is baked into pino transforms as well.
       'unicorn/prevent-abbreviations': [
diff --git a/node-src/__mocks__/dependencyChanges/berry-chalk-package.json b/node-src/__mocks__/dependencyChanges/berry-chalk-package.json
index aa89b779a..d7d2919dc 100644
--- a/node-src/__mocks__/dependencyChanges/berry-chalk-package.json
+++ b/node-src/__mocks__/dependencyChanges/berry-chalk-package.json
@@ -59,7 +59,7 @@
     "lint:package": "sort-package-json",
     "release": "node scripts/release.js",
     "trace": "node -r esm bin-src/trace.js",
-    "trim-stats": "node -r esm bin-src/trim-stats-file.js",
+    "trim-stats": "node -r esm bin-src/trimStatsFile.js",
     "storybook": "start-storybook -p 9009 -s static",
     "test": "jest",
     "prepare": "husky install && npm run build",
diff --git a/node-src/__mocks__/dependencyChanges/berry-package.json b/node-src/__mocks__/dependencyChanges/berry-package.json
index 68a466700..bf3c8b9f2 100644
--- a/node-src/__mocks__/dependencyChanges/berry-package.json
+++ b/node-src/__mocks__/dependencyChanges/berry-package.json
@@ -59,7 +59,7 @@
     "lint:package": "sort-package-json",
     "release": "node scripts/release.js",
     "trace": "node -r esm bin-src/trace.js",
-    "trim-stats": "node -r esm bin-src/trim-stats-file.js",
+    "trim-stats": "node -r esm bin-src/trimStatsFile.js",
     "storybook": "start-storybook -p 9009 -s static",
     "test": "jest",
     "prepare": "husky install && npm run build",
diff --git a/node-src/git/getParentCommits.test.ts b/node-src/git/getParentCommits.test.ts
index 3c35c5823..ed5ee8661 100644
--- a/node-src/git/getParentCommits.test.ts
+++ b/node-src/git/getParentCommits.test.ts
@@ -8,13 +8,13 @@ import { beforeAll, describe, expect, it, vi } from 'vitest';
 import generateGitRepository from './generateGitRepository';
 import { getParentCommits } from './getParentCommits';
 import { getCommit } from './git';
-import doubleLoopDescription from './mocks/double-loop';
-import longLineDescription from './mocks/long-line';
-import longLoopDescription from './mocks/long-loop';
-import createMockIndex from './mocks/mock-index';
-import simpleLoopDescription from './mocks/simple-loop';
-import threeParentsDescription from './mocks/three-parents';
-import twoRootsDescription from './mocks/two-roots';
+import doubleLoopDescription from './mocks/doubleLoop';
+import longLineDescription from './mocks/longLine';
+import longLoopDescription from './mocks/longLoop';
+import createMockIndex from './mocks/mockIndex';
+import simpleLoopDescription from './mocks/simpleLoop';
+import threeParentsDescription from './mocks/threeParents';
+import twoRootsDescription from './mocks/twoRoots';
 
 const descriptions = {
   simpleLoop: simpleLoopDescription,
diff --git a/node-src/git/mocks/double-loop.ts b/node-src/git/mocks/doubleLoop.ts
similarity index 100%
rename from node-src/git/mocks/double-loop.ts
rename to node-src/git/mocks/doubleLoop.ts
diff --git a/node-src/git/mocks/long-line.ts b/node-src/git/mocks/longLine.ts
similarity index 100%
rename from node-src/git/mocks/long-line.ts
rename to node-src/git/mocks/longLine.ts
diff --git a/node-src/git/mocks/long-loop.ts b/node-src/git/mocks/longLoop.ts
similarity index 100%
rename from node-src/git/mocks/long-loop.ts
rename to node-src/git/mocks/longLoop.ts
diff --git a/node-src/git/mocks/mock-index.ts b/node-src/git/mocks/mockIndex.ts
similarity index 100%
rename from node-src/git/mocks/mock-index.ts
rename to node-src/git/mocks/mockIndex.ts
diff --git a/node-src/git/mocks/simple-loop.ts b/node-src/git/mocks/simpleLoop.ts
similarity index 100%
rename from node-src/git/mocks/simple-loop.ts
rename to node-src/git/mocks/simpleLoop.ts
diff --git a/node-src/git/mocks/three-parents.ts b/node-src/git/mocks/threeParents.ts
similarity index 100%
rename from node-src/git/mocks/three-parents.ts
rename to node-src/git/mocks/threeParents.ts
diff --git a/node-src/git/mocks/two-roots.ts b/node-src/git/mocks/twoRoots.ts
similarity index 100%
rename from node-src/git/mocks/two-roots.ts
rename to node-src/git/mocks/twoRoots.ts
diff --git a/node-src/index.test.ts b/node-src/index.test.ts
index 6d3e2cd50..66ca06d87 100644
--- a/node-src/index.test.ts
+++ b/node-src/index.test.ts
@@ -275,7 +275,7 @@ const mockStats = {
 };
 const mockStatsFile = Readable.from([JSON.stringify(mockStats)]);
 
-vi.mock('./tasks/read-stats-file', () => ({
+vi.mock('./tasks/readStatsFile', () => ({
   readStatsFile: () => Promise.resolve(mockStats),
 }));
 
diff --git a/node-src/index.ts b/node-src/index.ts
index ab445752c..71f3e3a7f 100644
--- a/node-src/index.ts
+++ b/node-src/index.ts
@@ -12,8 +12,8 @@ import {
   getUncommittedHash,
   getUserEmail,
 } from './git/git';
-import GraphQLClient from './io/GraphQLClient';
-import HTTPClient from './io/HTTPClient';
+import GraphQLClient from './io/graphqlClient';
+import HTTPClient from './io/httpClient';
 import checkForUpdates from './lib/checkForUpdates';
 import checkPackageJson from './lib/checkPackageJson';
 import { isE2EBuild } from './lib/e2e';
@@ -22,8 +22,8 @@ import { getConfiguration } from './lib/getConfiguration';
 import getEnvironment from './lib/getEnvironment';
 import getOptions from './lib/getOptions';
 import { createLogger } from './lib/log';
-import LoggingRenderer from './lib/LoggingRenderer';
-import NonTTYRenderer from './lib/NonTTYRenderer';
+import LoggingRenderer from './lib/loggingRenderer';
+import NonTTYRenderer from './lib/nonTTYRenderer';
 import parseArguments from './lib/parseArguments';
 import { exitCodes, setExitCode } from './lib/setExitCode';
 import { uploadMetadataFiles } from './lib/uploadMetadataFiles';
diff --git a/node-src/io/GraphQLClient.ts b/node-src/io/graphqlClient.ts
similarity index 97%
rename from node-src/io/GraphQLClient.ts
rename to node-src/io/graphqlClient.ts
index 0a2f7e246..81ea4e565 100644
--- a/node-src/io/GraphQLClient.ts
+++ b/node-src/io/graphqlClient.ts
@@ -1,7 +1,7 @@
 import retry from 'async-retry';
 
 import { InitialContext } from '..';
-import HTTPClient, { HTTPClientOptions } from './HTTPClient';
+import HTTPClient, { HTTPClientOptions } from './httpClient';
 
 const RETRYABLE_ERROR_CODE = 'RETRYABLE_ERROR_CODE';
 
diff --git a/node-src/io/HTTPClient.ts b/node-src/io/httpClient.ts
similarity index 100%
rename from node-src/io/HTTPClient.ts
rename to node-src/io/httpClient.ts
diff --git a/node-src/lib/FileReaderBlob.ts b/node-src/lib/fileReaderBlob.ts
similarity index 100%
rename from node-src/lib/FileReaderBlob.ts
rename to node-src/lib/fileReaderBlob.ts
diff --git a/node-src/lib/LoggingRenderer.ts b/node-src/lib/loggingRenderer.ts
similarity index 100%
rename from node-src/lib/LoggingRenderer.ts
rename to node-src/lib/loggingRenderer.ts
diff --git a/node-src/lib/NonTTYRenderer.ts b/node-src/lib/nonTTYRenderer.ts
similarity index 100%
rename from node-src/lib/NonTTYRenderer.ts
rename to node-src/lib/nonTTYRenderer.ts
diff --git a/node-src/lib/uploadFiles.ts b/node-src/lib/uploadFiles.ts
index 991dbbf8d..cd67465b5 100644
--- a/node-src/lib/uploadFiles.ts
+++ b/node-src/lib/uploadFiles.ts
@@ -4,7 +4,7 @@ import { FormData } from 'formdata-node';
 import pLimit from 'p-limit';
 
 import { Context, FileDesc, TargetInfo } from '../types';
-import { FileReaderBlob } from './FileReaderBlob';
+import { FileReaderBlob } from './fileReaderBlob';
 
 /**
  * Upload Storybook build files to Chromatic.
diff --git a/node-src/lib/uploadMetadataFiles.ts b/node-src/lib/uploadMetadataFiles.ts
index 410c68058..b54a9cd19 100644
--- a/node-src/lib/uploadMetadataFiles.ts
+++ b/node-src/lib/uploadMetadataFiles.ts
@@ -2,7 +2,7 @@ import { stat, writeFileSync } from 'fs';
 import path from 'path';
 import { withFile } from 'tmp-promise';
 
-import { main as trimStatsFile } from '../../bin-src/trim-stats-file';
+import { main as trimStatsFile } from '../../bin-src/trimStatsFile';
 import { Context, FileDesc } from '../types';
 import metadataHtml from '../ui/html/metadata.html';
 import uploadingMetadata from '../ui/messages/info/uploadingMetadata';
diff --git a/node-src/lib/uploadZip.ts b/node-src/lib/uploadZip.ts
index 1d56239eb..906ef21ab 100644
--- a/node-src/lib/uploadZip.ts
+++ b/node-src/lib/uploadZip.ts
@@ -3,7 +3,7 @@ import { filesize } from 'filesize';
 import { FormData } from 'formdata-node';
 
 import { Context, TargetInfo } from '../types';
-import { FileReaderBlob } from './FileReaderBlob';
+import { FileReaderBlob } from './fileReaderBlob';
 
 /**
  * Upload a zip to Chromatic instead of individual files.
diff --git a/node-src/tasks/read-stats-file.ts b/node-src/tasks/readStatsFile.ts
similarity index 100%
rename from node-src/tasks/read-stats-file.ts
rename to node-src/tasks/readStatsFile.ts
diff --git a/node-src/tasks/upload.test.ts b/node-src/tasks/upload.test.ts
index 8758ebaba..393bb45a9 100644
--- a/node-src/tasks/upload.test.ts
+++ b/node-src/tasks/upload.test.ts
@@ -22,7 +22,7 @@ vi.mock('../lib/compress');
 vi.mock('../lib/getDependentStoryFiles');
 vi.mock('../lib/findChangedDependencies');
 vi.mock('../lib/findChangedPackageFiles');
-vi.mock('./read-stats-file', () => ({
+vi.mock('./readStatsFile', () => ({
   readStatsFile: () =>
     Promise.resolve({
       modules: [
@@ -34,7 +34,7 @@ vi.mock('./read-stats-file', () => ({
     }),
 }));
 
-vi.mock('../lib/FileReaderBlob', () => ({
+vi.mock('../lib/fileReaderBlob', () => ({
   // eslint-disable-next-line @typescript-eslint/no-extraneous-class
   FileReaderBlob: class {
     constructor(_path: string, length: number, onProgress: (delta: number) => void) {
diff --git a/node-src/tasks/upload.ts b/node-src/tasks/upload.ts
index b5d33faf0..4bbd2128d 100644
--- a/node-src/tasks/upload.ts
+++ b/node-src/tasks/upload.ts
@@ -31,7 +31,7 @@ import {
   uploading,
   validating,
 } from '../ui/tasks/upload';
-import { readStatsFile } from './read-stats-file';
+import { readStatsFile } from './readStatsFile';
 
 interface PathSpec {
   pathname: string;
diff --git a/node-src/types.ts b/node-src/types.ts
index c6fface7d..23e1796e2 100644
--- a/node-src/types.ts
+++ b/node-src/types.ts
@@ -1,6 +1,6 @@
 import { InitialContext } from '.';
-import GraphQLClient from './io/GraphQLClient';
-import HTTPClient from './io/HTTPClient';
+import GraphQLClient from './io/graphqlClient';
+import HTTPClient from './io/httpClient';
 import type { Configuration } from './lib/getConfiguration';
 import { Environment } from './lib/getEnvironment';
 import { Logger } from './lib/log';
diff --git a/node-src/ui/messages/errors/graphqlError.stories.ts b/node-src/ui/messages/errors/graphqlError.stories.ts
index 646bcbd40..674fdcd8d 100644
--- a/node-src/ui/messages/errors/graphqlError.stories.ts
+++ b/node-src/ui/messages/errors/graphqlError.stories.ts
@@ -1,4 +1,4 @@
-import { GraphQLError } from '../../../io/GraphQLClient';
+import { GraphQLError } from '../../../io/graphqlClient';
 import graphqlError from './graphqlError';
 
 export default {
diff --git a/node-src/ui/messages/errors/graphqlError.ts b/node-src/ui/messages/errors/graphqlError.ts
index 597c56f8f..d70f951ff 100644
--- a/node-src/ui/messages/errors/graphqlError.ts
+++ b/node-src/ui/messages/errors/graphqlError.ts
@@ -1,7 +1,7 @@
 import chalk from 'chalk';
 import { dedent } from 'ts-dedent';
 
-import { GraphQLError } from '../../../io/GraphQLClient';
+import { GraphQLError } from '../../../io/graphqlClient';
 import { error as icon } from '../../components/icons';
 import link from '../../components/link';
 
diff --git a/subdir/package.json b/subdir/package.json
index 2f9671988..1ac82dfb2 100644
--- a/subdir/package.json
+++ b/subdir/package.json
@@ -4,7 +4,7 @@
   "scripts": {
     "start": "start-storybook",
     "build": "build-storybook --webpack-stats-json --output-dir ../subdir-static",
-    "postbuild": "node -r esm ../bin-src/trim-stats-file.js ../subdir-static/preview-stats.json"
+    "postbuild": "node -r esm ../bin-src/trimStatsFile.js ../subdir-static/preview-stats.json"
   },
   "dependencies": {
     "@storybook/react": "^6.3.7",
diff --git a/test-stories/A.js b/test-stories/a.js
similarity index 100%
rename from test-stories/A.js
rename to test-stories/a.js
diff --git a/test-stories/AWrap.js b/test-stories/aWrap.js
similarity index 100%
rename from test-stories/AWrap.js
rename to test-stories/aWrap.js
diff --git a/test-stories/B.js b/test-stories/b.js
similarity index 100%
rename from test-stories/B.js
rename to test-stories/b.js
diff --git a/test-stories/Star.js b/test-stories/star.js
similarity index 100%
rename from test-stories/Star.js
rename to test-stories/star.js
diff --git a/test-stories/Tests.stories.js b/test-stories/tests.stories.js
similarity index 96%
rename from test-stories/Tests.stories.js
rename to test-stories/tests.stories.js
index 1cf9a9c98..6e309894e 100644
--- a/test-stories/Tests.stories.js
+++ b/test-stories/tests.stories.js
@@ -2,8 +2,8 @@
 
 import React from 'react';
 
-import isChromatic from '..';
-import AComponent from './A';
+import isChromatic from '../isChromatic';
+import AComponent from './a';
 
 export default {
   title: 'Tests',