diff --git a/README.md b/README.md
index 03e0f232..9293b7d3 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,9 @@ $ yarn CycloneDX make-sbom
                          (choices: "application", "framework", "library", "container", "platform", "device-driver", default: "application")
   --reproducible         Whether to go the extra mile and make the output reproducible.
                          This might result in loss of time- and random-based values.
+  --verbose,-v           Increase the verbosity of messages.
+                         Use multiple times to increase the verbosity even more.
+
 
 ━━━ Details ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
diff --git a/package.json b/package.json
index b40bdca5..0b08b7f2 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,6 @@
     "@cyclonedx/cyclonedx-library": "^6.4.0",
     "@yarnpkg/cli": "^4.1.0",
     "@yarnpkg/core": "^4.0.3",
-    "@yarnpkg/fslib": "^3.0.2",
     "clipanion": "^4.0.0-rc.3",
     "packageurl-js": "^1.2.1",
     "xmlbuilder2": "^3.1.1"
diff --git a/sources/_helpers.ts b/sources/_helpers.ts
new file mode 100644
index 00000000..139f267b
--- /dev/null
+++ b/sources/_helpers.ts
@@ -0,0 +1,43 @@
+/*!
+This file is part of CycloneDX SBOM plugin for yarn.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+SPDX-License-Identifier: Apache-2.0
+Copyright (c) OWASP Foundation. All Rights Reserved.
+*/
+import { readFileSync, writeSync } from 'fs'
+
+export function loadJsonFile (path: string): any {
+  return JSON.parse(readFileSync(path, 'utf8'))
+  // may be replaced by `require(f, { with: { type: "json" } })`
+  // as soon as this spec is properly implemented.
+  // see https://github.com/tc39/proposal-import-attributes
+}
+
+export async function writeAllSync (fd: number, data: string): Promise<number> {
+  const b = Buffer.from(data)
+  const l = b.byteLength
+  let w = 0
+  while (w < l) {
+    try {
+      w += writeSync(fd, b, w)
+    } catch (error: any) {
+      if (error.code !== 'EAGAIN') {
+        throw error
+      }
+      await new Promise((resolve) => setTimeout(resolve, 100))
+    }
+  }
+  return w
+}
diff --git a/sources/index.ts b/sources/index.ts
index 0aa7ec3a..7a8b9533 100644
--- a/sources/index.ts
+++ b/sources/index.ts
@@ -26,10 +26,10 @@ import {
   Project,
   ThrowReport
 } from '@yarnpkg/core'
-import { type PortablePath, ppath } from '@yarnpkg/fslib'
 import { Command, Option } from 'clipanion'
 
-import { generateSBOM, type OutputOptions, stdOutOutput } from './sbom'
+import { makeConsoleLogger } from './logger'
+import { generateSBOM, type OutputOptions, OutputStdOut } from './sbom'
 
 class SBOMCommand extends BaseCommand {
   static override readonly paths = [
@@ -52,8 +52,8 @@ class SBOMCommand extends BaseCommand {
     description: 'Which output format to use.\n(choices: "JSON", "XML", default: "JSON")'
   })
 
-  outputFile = Option.String('--output-file', {
-    description: 'Path to the output file.\nSet to "-" to write to STDOUT.\n(default: write to STDOUT)'
+  outputFile = Option.String('--output-file', OutputStdOut, {
+    description: `Path to the output file.\nSet to "${OutputStdOut}" to write to STDOUT.\n(default: write to STDOUT)`
   })
 
   /* mimic option from yarn.
@@ -73,7 +73,13 @@ class SBOMCommand extends BaseCommand {
     description: 'Whether to go the extra mile and make the output reproducible.\nThis might result in loss of time- and random-based values.'
   })
 
+  verbosity = Option.Counter('--verbose,-v', 1, {
+    description: 'Increase the verbosity of messages.\nUse multiple times to increase the verbosity even more.'
+  })
+
   async execute (): Promise<void> {
+    const myConsole = makeConsoleLogger(this.verbosity, this.context)
+
     const configuration = await Configuration.find(
       this.context.cwd,
       this.context.plugins
@@ -92,10 +98,10 @@ class SBOMCommand extends BaseCommand {
       await project.restoreInstallState()
     }
 
-    await generateSBOM(project, workspace, configuration, {
+    await generateSBOM(myConsole, project, workspace, configuration, {
       specVersion: parseSpecVersion(this.specVersion),
       outputFormat: parseOutputFormat(this.outputFormat),
-      outputFile: parseOutputFile(workspace.cwd, this.outputFile),
+      outputFile: this.outputFile,
       componentType: parseComponenttype(this.componentType),
       reproducible: this.reproducible
     })
@@ -133,17 +139,6 @@ function parseOutputFormat (
   return format
 }
 
-function parseOutputFile (
-  cwd: PortablePath,
-  outputFile: string | undefined
-): OutputOptions['outputFile'] {
-  if (outputFile === undefined || outputFile === '-') {
-    return stdOutOutput
-  } else {
-    return ppath.resolve(cwd, outputFile)
-  }
-}
-
 function parseComponenttype (componentType: string | undefined): CDX.Enums.ComponentType {
   if (componentType === undefined || componentType.length === 0) {
     return CDX.Enums.ComponentType.Application
diff --git a/sources/logger.ts b/sources/logger.ts
new file mode 100644
index 00000000..3e7fd076
--- /dev/null
+++ b/sources/logger.ts
@@ -0,0 +1,41 @@
+/*!
+This file is part of CycloneDX SBOM plugin for yarn.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+SPDX-License-Identifier: Apache-2.0
+Copyright (c) OWASP Foundation. All Rights Reserved.
+*/
+
+import { type BaseContext } from 'clipanion'
+
+function noop (): void {
+  // do nothing
+}
+
+export function makeConsoleLogger (level: number, context: BaseContext): Console {
+  // all output shall be bound to stdError - stdOut is for result output only
+  const myConsole = new console.Console(context.stderr, context.stderr)
+
+  if (level < 3) {
+    myConsole.debug = noop
+    if (level < 2) {
+      myConsole.info = noop
+      if (level < 1) {
+        myConsole.log = noop
+      }
+    }
+  }
+
+  return myConsole
+}
diff --git a/sources/sbom.ts b/sources/sbom.ts
index bc7f6f16..616f100c 100644
--- a/sources/sbom.ts
+++ b/sources/sbom.ts
@@ -26,9 +26,12 @@ import {
   structUtils,
   type Workspace
 } from '@yarnpkg/core'
-import { type PortablePath, xfs } from '@yarnpkg/fslib'
+import { openSync } from 'fs'
 import { PackageURL } from 'packageurl-js'
+import { resolve } from 'path'
+import * as process from 'process'
 
+import { writeAllSync } from './_helpers'
 import {
   type BuildtimeDependencies,
   type PackageInfo,
@@ -43,26 +46,25 @@ const componentBuilder = new CDX.Builders.FromNodePackageJson.ComponentBuilder(
   licenseFactory
 )
 
-/**
- * Denotes output to standard out is desired instead of writing files.
- */
-export const stdOutOutput = Symbol('__cdxyp_out2stdout')
+export const OutputStdOut = '-'
 
 export interface OutputOptions {
   specVersion: CDX.Spec.Version
   outputFormat: CDX.Spec.Format
-  /** Output file name. */
-  outputFile: PortablePath | typeof stdOutOutput
+  outputFile: string
   componentType: CDX.Enums.ComponentType
   reproducible: boolean
 }
 
 export async function generateSBOM (
+  myConsole: Console,
   project: Project,
   workspace: Workspace,
   config: Configuration,
   outputOptions: OutputOptions
 ): Promise<void> {
+  myConsole.debug('DEBUG | outputOptions:', outputOptions)
+
   const bom = new CDX.Models.Bom()
   await addMetadataTools(bom)
 
@@ -116,11 +118,15 @@ export async function generateSBOM (
     outputOptions.outputFormat,
     outputOptions.reproducible
   )
-  if (outputOptions.outputFile === stdOutOutput) {
-    console.log(serializedSBoM)
-  } else {
-    await xfs.writeFilePromise(outputOptions.outputFile, serializedSBoM)
-  }
+
+  myConsole.log('LOG   | writing BOM to', outputOptions.outputFile)
+  const written = await writeAllSync(
+    outputOptions.outputFile === OutputStdOut
+      ? process.stdout.fd
+      : openSync(resolve(process.cwd(), outputOptions.outputFile), 'w'),
+    serializedSBoM
+  )
+  myConsole.info('INFO  | wrote %d bytes to %s', written, outputOptions.outputFile)
 }
 
 async function addMetadataTools (bom: CDX.Models.Bom): Promise<void> {
@@ -158,7 +164,9 @@ function serialize (
   reproducible: OutputOptions['reproducible']
 ): string {
   const spec = CDX.Spec.SpecVersionDict[specVersion]
-  if (spec === undefined) { throw new RangeError('undefined specVersion') }
+  if (spec === undefined) {
+    throw new RangeError('undefined specVersion')
+  }
   switch (outputFormat) {
     case CDX.Spec.Format.JSON: {
       const serializer = new CDX.Serialize.JsonSerializer(
diff --git a/tests/integration/index.test.js b/tests/integration/index.test.js
index bb200a81..dc78f4c5 100644
--- a/tests/integration/index.test.js
+++ b/tests/integration/index.test.js
@@ -53,6 +53,7 @@ suite('integration', () => {
 
         const makeSBOM = spawnSync(
           'yarn', ['sbom',
+            '-vvv',
             '--reproducible',
             // no intention to test all the spec-versions nor all the output-formats - this would be not our scope.
             '--spec-version', latestCdxSpecVersion,
diff --git a/yarn.lock b/yarn.lock
index 0fa4fc47..94dc1085 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5897,7 +5897,6 @@ __metadata:
     "@yarnpkg/builder": "npm:4.0.0"
     "@yarnpkg/cli": "npm:^4.1.0"
     "@yarnpkg/core": "npm:^4.0.3"
-    "@yarnpkg/fslib": "npm:^3.0.2"
     c8: "npm:^9.1.0"
     clipanion: "npm:^4.0.0-rc.3"
     eslint: "npm:8.57.0"