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Aqua Wallet is a versatile and user-friendly mobile Bitcoin wallet available for Android and iOS. It allows users to interact with Bitcoin through various networks, including on-chain, Lightning, and Liquid networks. This guide will walk you through setting up Aqua Wallet and using its features to transact with Bitcoin.

Getting Started

Prerequisites

• An Android or iOS device to install Aqua Wallet.
• Some knowledge of Bitcoin and where to purchase it (e.g., local exchanges or peer-to-peer platforms like Hodl Hodl).
• Familiarity with Bitcoin transaction types (on-chain, Lightning, and Liquid).

Installation and Setup

1. Download and Install Aqua Wallet: Go to your device's app store, search for Aqua Wallet, and install it.
2. Create a New Wallet:
   • Open the Aqua Wallet app.
   • Tap on "Create New Wallet."
   • Agree to the terms of service.
   • The wallet will generate, and you'll be taken to the main screen.
3. Backup Seed Phrase:
   • Navigate to the settings tab.
   • Tap on "View Seed Phrase."
   • Write down the 12-word seed phrase on paper and store it securely.
   • This seed phrase is crucial for wallet recovery; treat it like cash.
4. Familiarize Yourself with the Interface:
   • Wallet Tab: Shows your Bitcoin and stablecoin balances.
   • Marketplace Tab: Allows you to swap between assets and access other services.
   • Settings Tab: Change preferences, access help, and manage assets.

Receiving Bitcoin

1. On-Chain Bitcoin:
   • Tap on "Receive."
   • Choose "Bitcoin."
   • Share the displayed Bitcoin address or QR code with the sender.
2. Lightning Network:
   • Tap on "Receive."
   • Choose "Lightning."
   • Set the amount to receive and generate an invoice.
   • Share the invoice or QR code with the sender.
3. Liquid Network:
   • Tap on "Receive."
   • Choose "Liquid."
   • Share the displayed Liquid address or QR code with the sender.

Sending Bitcoin

1. On-Chain Bitcoin:
   • Tap on "Send."
   • Choose "Bitcoin."
   • Enter the recipient's address or scan their QR code.
   • Enter the amount and confirm the transaction.
2. Lightning Network:
   • Tap on "Send."
   • Choose "Lightning."
   • Enter the recipient's invoice or scan their QR code.
   • Confirm the transaction.
3. Liquid Network:
   • Tap on "Send."
   • Choose "Liquid."
   • Enter the recipient's address or scan their QR code.
   • Enter the amount and confirm the transaction.

Swapping Assets

1. Swap Between On-Chain and Liquid Bitcoin:
   • Navigate to the "Marketplace" or tap "Swap" on the main screen.
   • Select "Bitcoin" to swap from and "Layer 2 Bitcoin" or "Liquid Bitcoin" to swap to.
   • Enter the amount and confirm the swap.
2. Swap Between Liquid Bitcoin and Stablecoins:
   • Follow the same steps as above, but select a stablecoin like USDT to swap to.

Recovery

1. Delete and Restore Wallet:
   • In Settings, tap "Delete Wallet" and confirm.
   • Tap "Restore Existing Wallet."
   • Enter your 12-word seed phrase.
   • Tap "Restore" to recover your wallet and funds.

Conclusion

Aqua Wallet is an excellent choice for beginners looking to explore Bitcoin transactions across different networks. With this guide, you should now feel comfortable setting up your wallet, receiving and sending Bitcoin, swapping assets, and recovering your wallet if needed. Always remember to keep your seed phrase secure and never share it with anyone.

Acknowledgments

This guide references information provided by Ben from BTC Sessions and includes shoutouts to various Bitcoin services and products. For further Bitcoin education, private one-on-one sessions, and more, visit btcsessions.ca.

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Creating and maintaining a positive mental attitude is essential for achieving success and happiness in life. The following guide, derived from a comprehensive discussion on the subject on the After Skool YouTube Channel, provides a step-by-step approach to help you cultivate a positive mindset.

Step 1: Adjust to Others

Learn to adapt to other people’s states of mind and challenges. Aim for peaceful interactions and overlook trivial matters to avoid unnecessary conflict.

Step 2: Establish a Morning Routine

Create a consistent morning routine to condition your mind to stay positive throughout the day.

Step 3: Steer Clear of Insignificant Disputes

Do not engage in arguments over trivial subjects. Focus your energy on more important matters.

Step 4: Laugh Off Irritation

Use laughter to counteract irritation and anger. Begin each day with a minute of laughter to promote a positive mental state.

Step 5: Be Grateful for Past Challenges

Express gratitude for past adversities and search for the lessons they provided. Also, be thankful for the blessings you anticipate receiving.

Step 6: Concentrate on the “Can Do”

Direct your attention to the aspects of your problems and desires that you can act on immediately, and initiate action without delay.

Step 7: Turn Negatives into Action

Transform negative situations into constructive action by focusing on your hobbies or major life goals.

Step 8: Utilize All Circumstances

Use every life situation, pleasant or unpleasant, to your advantage by learning and growing stronger from it.

Step 9: Embrace Lifelong Learning

View life as a continuous educational journey. Extract wisdom from all experiences, whether good or bad.

Step 10: Start with Self-Improvement

Begin by improving yourself to become more open-minded and patient in your interactions with others.

Step 11: Acknowledge Mind Control

Twice daily, acknowledge your control over your mind and seek guidance to use this power wisely.

Step 12: Praise Others’ Qualities

Regularly comment on the positive attributes of those around you without focusing on their faults.

Step 13: Use Criticism for Self-Reflection

Welcome criticism as an opportunity for self-examination and personal growth.

Step 14: Decline What You Don’t Desire

Do not accept anything from life that you do not wish for. Use passive resistance when necessary.

Step 15: Handle Worries Effectively

Distinguish between situations you can change and those you cannot. For the latter, practice passive resistance and refuse to let them cause you worry.

Step 16: Keep Your Major Purpose in Mind

Constantly think about your major life purpose to prevent wasting time on unwanted thoughts.

Step 17: Help Those Less Fortunate

Extend help to others who are in a worse situation than you. This practice will not only benefit them but also enrich your own life.

Step 18: Imitate Admirable Individuals

Choose a role model who embodies the traits you aspire to and emulate them.

Step 19: Develop a Friendly Voice

Work on your voice tone to make it sound friendly and inviting. Consider recording your voice for practice.

Step 20: Affirm Your Beliefs

Write the sentence "Whatever the mind can conceive and believe, the mind can achieve" and display it prominently at work and home.

By following these 20 steps, you can actively work towards maintaining a positive mental attitude, which is a key factor in achieving your goals and living a fulfilling life.

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Introduction

Coinos is a user-friendly web wallet for bitcoin that provides a variety of payment options, including a merchant point-of-sale terminal. This guide, created in video form by BTC Sessions and translated to written form by TFTC, will help you set up your Coinos account, understand its features, and recognize the trade-offs of using a web wallet.

Prerequisites

• No extensive prerequisite knowledge is required.
• Basic understanding of bitcoin transactions, lightning, and liquid networks is a plus.

Setting Up Coinos

Creating an Account

1. Visit the Coinos website at coinos.io.
2. Click on "Start in seconds."
3. Enter your email address and create a password.

Customizing Your Profile

• Log in to your Coinos account.

• Navigate to the settings by clicking on the menu in the top right corner.

• In the settings, you can:

• Set a username for easy payments.

• Update your display name and profile image.

• Add a banner image and a short bio.

• Configure your email for payment notifications.

• Save all changes by clicking "Save Settings."

Adjusting Preferences

• Under the Preferences tab in settings:

• Select your preferred language and currency.

• Enable payment notifications.

• Opt to display a tip button on your page.

• Set up a Shopify integration if required.

Enhancing Security

• In the Security tab:

• Change your password if needed.

• Enable a security PIN.

• Set up two-factor authentication for additional security.

• Save the NOSTR key for decentralized social media integration.

Receiving Payments

On-Chain Bitcoin Payments

1. Click "Receive" on your Coinos account.
2. Choose to receive via regular bitcoin payment.
3. Share the generated QR code or copy the bitcoin address to receive funds.

Liquid and Lightning Payments

1. For Liquid payments, select the "Liquid" option when receiving.
2. For Lightning payments, select the "Lightning" option.
3. Share the QR code or copy the respective address or invoice to receive funds.

Unified Balance

• Coinos combines all your funds into one balance, irrespective of the payment method used.

Sending Payments

On-Chain Bitcoin Payments

1. Click "Send" on your Coinos account.
2. Enter or scan the recipient’s bitcoin address.
3. Specify the amount and choose the network fee.
4. Confirm and send the payment.

Liquid and Lightning Payments

1. Choose to send via Liquid or Lightning options.
2. Input the recipient's address or invoice.
3. Set the amount and send the payment with minimal fees.

User-to-User Transactions

• Utilize the Coinos username feature to send payments to other Coinos users without additional fees.

Installing Coinos as a Progressive Web App

1. Access Coinos through the browser on your mobile device.
2. Use the browser's menu to select "Install app" or "Add to home screen."
3. Launch the Coinos app from your home screen for a more immersive experience.

Using the Coinos Map

• Explore the Coinos map to find merchants that accept bitcoin via Coinos.

Final Considerations

• Coinos is a custodial wallet, meaning the service holds your bitcoin keys. Practice moving towards self-custody for larger amounts.
• Withdraw funds using the method that best suits your needs (on-chain, Liquid, Lightning).
• For further assistance or private education sessions on bitcoin, visit btcsessions.ca.

Remember, always strive for self-custody and use Coinos as a stepping stone to familiarize yourself with bitcoin transactions and management.

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Introduction

Matthew Kratter from Bitcoin University discusses the importance and methods of using Bitcoin block space efficiently. This guide is a follow-up to a previous discussion on how monetary systems scale and is aimed at those already somewhat familiar with Bitcoin. If you need a refresher, watch the linked video in the description (video linked at the bottom of this article).

Understanding Monetary Systems and Scaling

• Monetary systems scale in layers, where most transactions occur on higher layers or different payment rails.
• Transactions are batched and netted out, with the net result settled on the base layer.
• The base layer provides strong final settlement guarantees but has higher transaction fees.

Historical Example: The Gold Standard

• Countries would exchange goods and net out the balance at the end of a period, settling the difference in physical gold.
• This efficient approach avoided the cost and time of shipping equivalent values of gold back and forth.

Using Bitcoin Efficiently: Layered Transactions

• Similar to the gold standard, Bitcoin transactions can be batched and settled on the base layer.
• On-chain (Layer 1) transactions can be expensive, pushing activity to higher layers, like the Lightning Network.

The Lightning Network

• Opening a Lightning channel involves a single base layer transaction to lock up Bitcoin in a two-of-two multisig wallet.
• Once the channel is set up, unlimited transactions can occur with minimal fees.
• At the end, a corresponding two-of-two multisig transaction settles the net balance on the base layer.

Custodial Solutions: Internal Ledgers

• Services like Cash App maintain internal ledgers to record transactions without impacting the blockchain.
• Users can transact multiple times with no fees, and the service settles on-chain only when necessary.
• Custodial solutions carry the risk of government interference or the service not having sufficient funds for withdrawals.

Reducing On-Chain Footprint

High transaction fees drive users to:

• Use layer two solutions like Lightning or custodial services.
• Wait for lower congestion periods to transact.
• Batch transactions and use newer, more space-efficient address types to save on fees.

[

Understanding Bitcoin Addresses: A Comprehensive Guide

If you’re venturing into the world of Bitcoin, one fundamental aspect you need to comprehend is the bitcoin address. This guide will demystify Bitcoin addresses, their function, and their critical role in safeguarding your privacy and security in the realm of digital currency.

TFTC – Truth for the CommonerMarty Bent

](https://tftc.io/bitcoin-address/)

Batching Transactions

• Exchanges can batch multiple withdrawals into a single transaction with multiple outputs to save on fees.
• Using a transaction size calculator, it's shown that one transaction with ten outputs uses significantly less block space than ten separate transactions.

Using Efficient Address Types

• Newer address types, like Taproot, use less block space than older types like Pay to Public Key Hash (P2PKH).
• A transaction calculator can show the savings in virtual bytes (v bytes) when using different address types.

[

How to Manage Bitcoin UTXOs and Save on Transaction Fees

If you’re a Bitcoin holder and take custody of your funds, UTXOs is crucial to avoid hefty fees later on. This guide will help you understand and implement UTXO management to consolidate your Bitcoin holdings efficiently, balancing cost savings with privacy considerations.

TFTC – Truth for the CommonerStaff

](https://tftc.io/bitcoin-utxo-management/)

Conclusion and Call to Action

Efficient use of Bitcoin block space benefits the entire ecosystem by reducing fees and congestion. This efficiency encourages the use of higher layers and various payment rails, both custodial and non-custodial.

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Introduction

In this guide, we'll cover the essential steps and precautions you should take when using bitcoin hardware wallets, managing self-custody, and securing your recovery seeds. This guide is based on the insights shared by Matthew Kratter from Bitcoin University and serves as a follow-up to his instructional series on cryptocurrency security.

Section 1: Choosing Your Hardware Wallet

Importance of Hardware Wallets

Hardware wallets are physical devices that store the private keys to your bitcoin offline, offering enhanced security against online threats.

Selecting a Wallet

• ColdCard: Recommended for its advanced features and security.
• Blockstream Jade: A more affordable option with fewer features but still secure.
• Trezor: Fine if using the Bitcoin-only version, but the company's support for altcoins introduces a broader attack surface.

[

How to Use the SeedVault Feature on Coldcard Mk4

The Coldcard Mk4 hardware wallet offers an advanced feature known as SeedVault, which allows users to create new seed phrases, import existing ones, backup devices like the Tapsigner to the Coldcard

TFTC – Truth for the CommonerStaff

](https://tftc.io/how-to-use-the-seedvault-feature-on-coldcard-mark-4/)

Avoiding Single Points of Failure

• It is advisable to pair your hardware wallet with third-party software, like Sparrow Wallet, instead of the manufacturer's software. This reduces the risk of depending on one company for both hardware and software security.

Section 2: Using Sparrow Wallet

Why Sparrow Wallet?

• Sparrow Wallet allows you to connect your hardware wallet to a bitcoin node, either your own or a recommended node, enhancing privacy and reducing trust in a single entity.

Pairing Your Wallet with Sparrow

• You can pair various hardware wallets such as Trezor, Jade, or ColdCard with Sparrow Wallet for a more secure setup.

[

How to Use Sparrow Wallet: A Comprehensive Guide

Sparrow Wallet is a versatile desktop Bitcoin wallet offering a range of features from creating hot wallets to multi-signature vaults.

TFTC – Truth for the CommonerMarty Bent

](https://tftc.io/sparrow-wallet-guide/)

Section 3: Securing Your Recovery Seed

Understanding Recovery Seeds

• Your recovery seed, also known as a recovery phrase or backup, is a human-readable version of your private keys. It allows for the restoration of your bitcoin wallet and transactions.

Creating a Recovery Seed

• Use the random number generator in your hardware wallet to create a unique seed.
• Avoid choosing your own words, as this reduces randomness and security.

Storing Your Seed Securely

• Stamp or engrave your seed onto stainless steel or titanium to withstand fire or floods.
• Store this metal plate in a safe, tamper-proof location.

What to Avoid

• Never share your 12-word or 24-word recovery seed with anyone.
• Do not enter your seed online, take pictures, say it out loud, or store it on cloud services.
• Avoid working on your seed in public places with surveillance cameras.

Dealing with Scams

• Be vigilant of fake support desks on platforms like Telegram.
• No legitimate company will ever ask for your recovery seed; scammers will.

Section 4: Handling Transaction Fees

Understanding Fees

• Bitcoin transaction fees are not a percentage of the transferred amount but are based on the amount of data and block space your transaction uses.
• Fees vary depending on network congestion and the time of your transaction.

[

Understanding Bitcoin Transactions and Mempool Policy Enhancements

Bitcoin transactions might seem straightforward at first glance, but there’s a complex system at play behind the scenes. At the heart of this system is the mempool, a holding area for transactions awaiting confirmation.

TFTC – Truth for the CommonerStaff

](https://tftc.io/bitcoin-mempool/)

Timing Your Transactions

• Consider waiting for lower transaction fees before making a transfer, especially when moving bitcoin from one wallet to another.

Section 5: Encouragement and Patience

Overcoming Frustration

• Recognize that the learning curve for bitcoin custody can be steep.
• Take your time to learn and don't rush transactions or make hasty decisions.

Continuous Learning

• The journey to self-sovereignty and mastery of bitcoin security is ongoing.
• Stay informed and educate yourself regularly to keep up with the evolving ecosystem.

Conclusion

By following the steps outlined in this guide, you will enhance the security of your bitcoin holdings and protect yourself from common pitfalls. Remember, safeguarding your cryptocurrency requires careful consideration of the hardware wallet you choose, the software you pair it with, and the methods you use to secure your recovery seed. Patience and ongoing education are key to successfully managing your digital assets.

If you found this guide helpful, consider subscribing to the channel for more informative content, and share this guide with friends or family who may benefit from these security practices.

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Introduction

If you're a Bitcoin holder and take custody of your funds, managing your Unspent Transaction Outputs (UTXOs) is crucial to avoid hefty fees later on. This guide will help you understand and implement UTXO management to consolidate your Bitcoin holdings efficiently, balancing cost savings with privacy considerations.

Prerequisites

• Basic knowledge of Bitcoin transactions
• Access to a Bitcoin wallet (preferably Sparrow Wallet)
• Familiarity with sending and receiving Bitcoin

[

How to Use Sparrow Wallet: A Comprehensive Guide

Sparrow Wallet is a versatile desktop Bitcoin wallet offering a range of features from creating hot wallets to multi-signature vaults.

TFTC – Truth for the CommonerMarty Bent

](https://tftc.io/sparrow-wallet-guide/)

Section 1: Understanding Bitcoin Transaction Fees

Factors Determining Fees

1. Network Activity: The more congested the network, the higher the fees.
2. Transaction Data: Larger transactions with more data require higher fees.
3. Value Irrelevance: The fee is not based on the amount of Bitcoin sent but on the data and network congestion.

Network Design and Fees

The Bitcoin network is designed for decentralization, limiting the data processed every 10 minutes. This constraint necessitates transaction fees, which you can set. However, setting fees too low may result in delayed or unconfirmed transactions.

Section 2: What is a UTXO?

UTXOs are like individual bills in your physical wallet. Each time you receive Bitcoin, it appears as a separate UTXO, not just a balance increase. Managing these UTXOs is crucial since each one adds to the transaction size, thereby increasing the fees.

Section 3: UTXO Management and Consolidation

Consolidating UTXOs involves sending multiple small UTXOs to yourself to create one larger UTXO. This reduces the data required for future transactions, hence lowering fees.

Steps to Consolidate UTXOs in Sparrow Wallet

1. Open Sparrow Wallet and navigate to the UTXOs tab.
2. Select UTXOs you wish to consolidate.
3. Click 'Send Selected' and Sparrow will take you to the send screen.
4. Use the consolidation feature by selecting your wallet name from the dropdown in the 'Pay to' field.
5. Set the fee using the slider based on current network conditions.
6. Label the transaction (e.g., 'Consolidation') for easy identification.
7. Create, finalize, and sign the transaction.
8. Broadcast the transaction to the network.

Section 4: Privacy Considerations

Consolidating UTXOs can impact privacy by linking multiple inputs to a single address. Take care when consolidating to not reveal large holdings or patterns of wealth to those who may observe the blockchain.

Recommended UTXO Sizes

• Aim for UTXOs around 1 million sats or more to ensure economic feasibility.
• Consider the types of transactions you anticipate and set UTXO sizes accordingly.

Section 5: Tools and Resources

• Mempool.space: A website to check real-time fee rates.
• Economically Unspendable Bitcoin UTXO Calculator: A tool by Jameson Lopp to calculate the minimum spendable UTXO size based on current fees.
• Wicked Smart Bitcoin: A YouTube channel with in-depth tutorials on UTXO management.

Section 6: Final Thoughts

Bitcoin is still evolving, and as new layers and tools develop, the best practices for UTXO management may change. Stay informed, use tools that minimize counterparty risk, and select transaction methods that suit your needs without compromising your privacy or economic efficiency.

Section 7: Additional Resources

Refer to the Sparrow Wallet tutorials and consider booking a one-on-one session for personalized help with Bitcoin-related topics if needed.

Conclusion

By managing your UTXOs effectively, you can save on fees and maintain better control over your Bitcoin holdings. Remember to balance fee savings with privacy and stay adaptable as Bitcoin's technology progresses.

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Introduction

This guide is based on Uncle Rockstar's video explaining how to enable and utilize Payjoin and CoinJoin functionalities in BTCPay Server. It's aimed at Bitcoin users who wish to increase the privacy of their transactions when withdrawing coins from exchanges or for other purposes.

Before proceeding, it is important to note that you should have a basic understanding of what CoinJoin is. If you are new to the concept, Uncle Rockstar recommends checking out resources such as the CoinJoin page on Bitcoin Wiki, Nopara's coin control article, and other educational content available online.

[

Understanding Bitcoin Privacy: A Comprehensive Guide

Bitcoin was created with a strong ethos of transparency, allowing users to verify system integrity independently. However, the transparent nature of the Bitcoin protocol does not preclude users from maintaining financial privacy.

TFTC – Truth for the CommonerMarty Bent

](https://tftc.io/bitcoin-privacy/)

Prerequisites

Before you start the setup process, ensure that you have an instance of BTCPay Server set up and running. If you need guidance on setting up your instance, refer to Uncle Rockstar's previous videos or the BTCPay Server documentation.

Setting Up Your Store for Payjoin and CoinJoin

1. Creating a Store:
   • Navigate to the BTCPay Server dashboard.
   • Select the option to "Create a New Store."
2. Installing the CoinJoin Plugin:
   • Ensure that you have the CoinJoin plugin installed. This plugin is developed by Kuks, who is credited for the creation of most of the code used in this guide.
   • If you do not have the plugin installed, find it in the plugin list and install it.
3. Creating a New Wallet:
   • Go to the option to "Create a New Wallet" within your store settings.
   • Choose to create a "Hot Wallet" to enable Payjoin by default.
   • Write down your recovery phrase. Note that Uncle Rockstar demonstrates this process with a testnet, meaning the coins have no real value.
4. Setting Up CoinJoins:
   • Navigate to the "Dashboard" and select "CoinJoins."
   • If CoinJoins are not already set up, follow the prompts to get more information and continue the setup.
   • Select a CoinJoin coordinator from the available options. You can choose multiple coordinators, but for simplicity, select one for now and click "Save."
5. Receiving and Sending Transactions:
   • To receive coins to your wallet, go to "Bitcoin" and click "Receive" to generate the next available address.
   • For withdrawing or sending coins, create a "Point of Sale" app in your store for more convenient address generation.
   • Use the generated URL on your phone or other devices to create payment requests with fresh addresses each time.

Performing a Payjoin Transaction

1. Initiating a Payjoin Transaction:
   • Ensure the wallet you are sending from supports Payjoin.
   • Use a BIP21 URI with a "PJ" query string parameter to initiate a Payjoin transaction.
2. Sending the Payjoin Transaction:
   • Paste the BIP21 URI into the wallet that supports Payjoin.
   • Fill in the transaction details.
   • Sign and broadcast the transaction, ensuring that it is recognized as a Payjoin transaction by the inclusion of different outputs and varying bitcoin amounts.

Additional Settings and Considerations

1. Moving Bitcoin to Cold Storage:
   • After mixing is complete, you may want to transfer your Bitcoin to cold storage for added security.
   • Create another store with a wallet using the xpub from your hardware wallet.
   • Configure the settings to send coins to this new wallet once a privacy target is reached.
2. Adjusting CoinJoin Settings:
   • Access the "Scientist Mode" for advanced settings.
   • Set parameters such as "Only CoinJoin if Mining Fees Below Median" and "Minimum Denomination of Sats."
   • Use the "Send to Other Wallet" feature to direct coins to your cold storage store.
3. Running Your Own Coordinator:
   • For advanced users, there are options to run your own CoinJoin coordinator.
   • Set fees and thresholds for your coordinator and use tools like Nostr for coordination discovery.

Conclusion

Uncle Rockstar's video emphasizes the ease of setting up Payjoin and CoinJoin in BTCPay Server, encouraging users to take advantage of these privacy-enhancing technologies. If you encounter any issues or have questions, you can reach out to Uncle Rockstar via Twitter or the video's comment section for assistance.

Lastly, don't let the ongoing debates about Bitcoin's scalability distract you from maintaining your privacy. Utilize the available technologies like Payjoin and CoinJoin, and enjoy the enhanced privacy of your Bitcoin transactions.