The Beaver Tools
banner
beavertools.eurosky.social
The Beaver Tools
@beavertools.eurosky.social
Tiny macOS apps that save big time.
Turn Your Articles Into Podcast Episodes

Beaver Publisher now converts written posts into narrated audio and publishes them through podcast hosts

An article does not have to remain an article.

https://medium.com/@chris.ahrweiler/turn-your-articles-into-podcast-episodes-711fc2059d70
Turn Your Articles Into Podcast Episodes
Beaver Publisher now converts written posts into narrated audio and publishes them through podcast hosts An article does not have to remain an article. Some people prefer reading. Others listen while driving, walking, exercising, or working
medium.com
September 15, 2026 at 3:11 PM
Blockchain and Bitcoin Explained in 6 Episodes — Episode 3

In the first two episodes, we explained how a blockchain is built, secured, and stored across many independent nodes.

https://medium.com/@chris.ahrweiler/blockchain-and-bitcoin-explained-in-6-episodes-episode-3-4031cfe9336c
Blockchain and Bitcoin Explained in 6 Episodes — Episode 3
Episode 3: Bitcoin as an Application of Blockchain Technology In the first two episodes, we explained how a blockchain is built, secured, and stored across many independent nodes. Now we look at a practical application of this technology:
medium.com
September 14, 2026 at 9:22 PM
Publish Once. Distribute Everywhere.

Beaver Publisher brings articles, social networks, audio, and podcasts together in one Mac app

Publishing an article is often only the beginning.

https://medium.com/@chris.ahrweiler/publish-once-distribute-everywhere-c257c097e354
Publish Once. Distribute Everywhere.
Beaver Publisher brings articles, social networks, audio, and podcasts together in one Mac app Publishing an article is often only the beginning. After writing it, you may want to share it on Threads, Bluesky, Mastodon, Pinterest, Tumblr,
medium.com
September 14, 2026 at 9:20 PM
Seal Your Work Before You Deliver It

Preserve the original files before they leave your hands.

A photographer completes a commercial shoot for an agency.

https://medium.com/@chris.ahrweiler/seal-your-work-before-you-deliver-it-03ecf0511732
Seal Your Work Before You Deliver It
Preserve the original files before they leave your hands. A photographer completes a commercial shoot for an agency. The final selection is edited, exported, and delivered in full resolution. The agency receives everything it needs to begin
medium.com
September 14, 2026 at 9:19 PM
Seal the Offer Before You Book

Preserve the details your booking decision is based on.

You find the perfect holiday apartment online.

https://medium.com/@chris.ahrweiler/seal-the-offer-before-you-book-6f114c399f3c
Seal the Offer Before You Book
Preserve the details your booking decision is based on. You find the perfect holiday apartment online. The photos look great. The location is ideal. The listing promises air conditioning, a private parking space, sea views, free Wi-Fi, and
medium.com
September 14, 2026 at 8:20 PM
A screenshot is not a timestamp

How to record a webpage so anyone can check it later — without trusting you, us, or a screenshot.

A screenshot is easy. So is a lie about a screenshot.

https://medium.com/@chris.ahrweiler/a-screenshot-is-not-a-timestamp-306072e5af82
A screenshot is not a timestamp
How to record a webpage so anyone can check it later — without trusting you, us, or a screenshot. A screenshot is easy. So is a lie about a screenshot. You capture a headline, a filing, a social post, a product page. Months later the URL 4
medium.com
September 11, 2026 at 11:41 PM
Turn Any Webpage into Verifiable Evidence

An online offer can be changed. A product description can disappear. A customer portal may show different information tomorrow.

https://medium.com/@chris.ahrweiler/turn-any-webpage-into-verifiable-evidence-843664ca24fa
Turn Any Webpage into Verifiable Evidence
Webpages are temporary. An online offer can be changed. A product description can disappear. A customer portal may show different information tomorrow. Prices, terms, order details and public statements can all be updated without leaving a
medium.com
September 10, 2026 at 11:08 PM
Blockchain and Bitcoin Explained in 6 Episodes — Episode 2

Episode 2: How Is a Blockchain Stored?

In Episode 1, we built a blockchain from a series of connected blocks.

https://medium.com/@chris.ahrweiler/blockchain-and-bitcoin-explained-in-6-episodes-episode-2-03f91e728a4b
Blockchain and Bitcoin Explained in 6 Episodes — Episode 2
Episode 2: How Is a Blockchain Stored? In Episode 1, we built a blockchain from a series of connected blocks. Every block contains data, the hash of its predecessor, and a nonce. Together, they form a continuously verifiable chain. But whe
medium.com
September 10, 2026 at 5:59 AM
Zstandard Explained in 2 Episodes — Episode 2

In Episode 1, we saw how Zstandard detects repetitions and replaces them with shorter references.

https://medium.com/@chris.ahrweiler/zstandard-explained-in-2-episodes-episode-2-993b8b2a0c5c
Zstandard Explained in 2 Episodes — Episode 2
Episode 2: How Zstandard Compares With Other Compression Methods ZST, ZIP, GZIP, Brotli, LZ4, and XZ Compared In Episode 1, we saw how Zstandard detects repetitions and replaces them with shorter references. Zstandard is only one of severa
medium.com
September 9, 2026 at 6:18 AM
Zstandard Explained in 2 Episodes — Episode 1

ZST files are becoming increasingly common in large downloads, software packages, backups, and server data.

https://medium.com/@chris.ahrweiler/zstandard-explained-in-2-episodes-episode-1-80ce97b34c51
Zstandard Explained in 2 Episodes — Episode 1
Episode 1: What Happens Inside a ZST File ZST files are becoming increasingly common in large downloads, software packages, backups, and server data. They are often considerably smaller than the original files, yet they can still be decomp
medium.com
September 8, 2026 at 6:29 AM
Turn Any Image or Video Into a Virtual Camera on Mac

Video-call and recording apps normally expect a live webcam. But a camera does not always need to show what is happening in front of a lens.

https://medium.com/@chris.ahrweiler/turn-any-image-or-video-into-a-virtual-camera-on-mac-b852daf67f55
Turn Any Image or Video Into a Virtual Camera on Mac
Video-call and recording apps normally expect a live webcam. But a camera does not always need to show what is happening in front of a lens. You may want to display: A prepared introduction A product demonstration A presentation card A stat
medium.com
September 8, 2026 at 6:05 AM
Create Windows-Compatible ZIP Files on Your Mac

Creating a ZIP file on a Mac is easy: select a folder, choose Compress, and send the archive.

https://medium.com/@chris.ahrweiler/create-windows-compatible-zip-files-on-your-mac-2b8932f1b903
Create Windows-Compatible ZIP Files on Your Mac
Why Mac ZIP Files Look Messy on Windows Creating a ZIP file on a Mac is easy: select a folder, choose Compress, and send the archive. But when someone opens it on Windows or Linux, they may find unexpected entries such as: __MACOSX .DS_Sto
medium.com
September 7, 2026 at 10:20 PM
Verify Digital Proofs Without Trusting a Certificate Server

Introducing Beaver Proof Verifier — a free verification tool for files, proof packages, and OpenTimestamps records

https://medium.com/@chris.ahrweiler/verify-digital-proofs-without-trusting-a-certificate-server-a82a378f5470
Verify Digital Proofs Without Trusting a Certificate Server
Introducing Beaver Proof Verifier — a free verification tool for files, proof packages, and OpenTimestamps records Creating a digital proof is only half of the workflow. At some point, the proof must be handed to someone else: a customer,
medium.com
September 7, 2026 at 9:31 PM
Blockchain und Bitcoin erklärt in 6 Episoden — Episode 6

Beaver Proof ist eine Gruppe von Apps, mit denen sich nachweisen lässt, dass eine Datei oder der Inhalt einer Webseite zu einem…

https://medium.com/@chris.ahrweiler/blockchain-und-bitcoin-erkl%C3%A4rt-in-6-episoden-episode-6-04db6efe93d5
Blockchain und Bitcoin erklärt in 6 Episoden — Episode 6
Episode 6: Wie Beaver Proof die Bitcoin-Blockchain nutzt Beaver Proof ist eine Gruppe von Apps, mit denen sich nachweisen lässt, dass eine Datei oder der Inhalt einer Webseite zu einem bestimmten Zeitpunkt bereits existierte und seitdem ni
medium.com
September 7, 2026 at 9:10 PM
Blockchain und Bitcoin erklärt in 6 Episoden — Episode 5

Episode 5: Wie funktionieren digitale Signaturen?

Bitcoin 1,0 BTCDas reicht zunächst, um eine Bitcoin-Zahlung zu erklären.

https://medium.com/@chris.ahrweiler/blockchain-und-bitcoin-erkl%C3%A4rt-in-6-episoden-episode-5-14a57515ad40
Blockchain und Bitcoin erklärt in 6 Episoden — Episode 5
Episode 5: Wie funktionieren digitale Signaturen? Wie eine Bitcoin-Wallet funktioniert In Episode 3 haben wir Annas Wallet vereinfacht dargestellt: Annas Wallet Bitcoin 1,0 BTCDas reicht zunächst, um eine Bitcoin-Zahlung zu erklären. Jetzt
medium.com
September 4, 2026 at 8:43 PM
Zstandard einfach erklärt in 2 Episoden — Episode 2

In Episode 1 haben wir gesehen, wie Zstandard Wiederholungen erkennt und durch kürzere Verweise ersetzt.

https://medium.com/@chris.ahrweiler/zstandard-einfach-erkl%C3%A4rt-in-2-episoden-episode-2-1d8e4c4d7cfd
Zstandard einfach erklärt in 2 Episoden — Episode 2
Episode 2: Zstandard im Vergleich mit anderen Kompressionsverfahren ZST, ZIP, GZIP, Brotli, LZ4 und XZ im Vergleich In Episode 1 haben wir gesehen, wie Zstandard Wiederholungen erkennt und durch kürzere Verweise ersetzt. Zstandard ist jedo
medium.com
September 4, 2026 at 8:41 PM
Blockchain und Bitcoin erklärt in 6 Episoden — Episode 4

In Episode 3 haben wir gesehen, wie Bitcoin die Blockchain verwendet: Transaktionen werden gesammelt, geprüft und in Blöcken…

https://medium.com/@chris.ahrweiler/blockchain-und-bitcoin-erkl%C3%A4rt-in-6-episoden-episode-4-ef6db050756e
Blockchain und Bitcoin erklärt in 6 Episoden — Episode 4
Episode 4: Bitcoin: Geschichte, Mining und die Zukunft In Episode 3 haben wir gesehen, wie Bitcoin die Blockchain verwendet: Transaktionen werden gesammelt, geprüft und in Blöcken gespeichert. Anschließend wird durch das Verändern der Nonc
medium.com
September 3, 2026 at 9:03 PM
Blockchain und Bitcoin erklärt in 6 Episoden — Episode 3

In den ersten beiden Episoden haben wir erklärt, wie eine Blockchain aufgebaut, abgesichert und auf vielen unabhängigen Nodes…

https://medium.com/@chris.ahrweiler/blockchain-und-bitcoin-erkl%C3%A4rt-in-6-episoden-episode-3-8eb2ce922bfb
Blockchain und Bitcoin erklärt in 6 Episoden — Episode 3
Episode 3: Bitcoin als Anwendung der Blockchain In den ersten beiden Episoden haben wir erklärt, wie eine Blockchain aufgebaut, abgesichert und auf vielen unabhängigen Nodes gespeichert wird. Jetzt betrachten wir eine konkrete Anwendung di
medium.com
September 3, 2026 at 8:43 PM