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Author Topic: btcpos.cash Lightning-to-Liquid Easy POS  (Read 36 times)
xenoky (OP)
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December 23, 2025, 09:49:33 AM
 #1

btcpos.cash
Lightning-to-Liquid POS: Fast, Cheap, and Private
⚠️ BTC ONLY: No Altcoins | No Bitcoin Cash | No KYC ⚠️



Modern Bitcoin Payments Without the On-Chain Friction
btcpos.cash is a specialized POS service designed for merchants who want the speed of Lightning but the security of a non-custodial cold-storage workflow. We solve the high-fee problem by bridging the gap between networks efficiently.

Key Features:
  • Watch-Only Configuration: Your private keys never touch our servers or the POS device. Configuration is strictly watch-only for maximum security.
  • Receive via Lightning: Give your customers the best experience with instant, near-zero-fee transactions.
  • Settlement on Liquid (L-BTC): Payments are swapped into the Liquid Network.
  • Why Liquid?
    • Lower Swap Rates: The exchange rate from Lightning to Liquid is significantly lower than Lightning to On-chain.
    • Fee Efficiency: During periods of high Bitcoin congestion, Liquid transaction fees remain negligible, allowing you to move or consolidate funds without losing your margin to miners.
  • Non-Custodial: You maintain control of your assets at all times.


Technical Workflow:
1. Merchant configures a Watch-Only Liquid address.
2. Customer pays via Lightning Network (instant).
3. Funds are settled as L-BTC in the merchant's wallet.
4. Enjoy low-fee transfers or peg-out to Mainnet.



Start accepting Bitcoin smarter
Visit btcpos.cash

We are reclaiming the "Cash" in our TLD for the Bitcoin Lightning ecosystem.


Note: This is a self-moderated thread. We welcome technical feedback regarding Liquid/Lightning implementation, but please keep the discussion professional.
xenoky (OP)
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December 24, 2025, 01:37:51 PM
 #2

Added a bunch of fiat currencies

🇬🇧 GBP | 🇮🇳 INR | 🇨🇦 CAD | 🇦🇷 ARS 🇦🇺 AUD | 🇧🇷 BRL | 🇨🇳 CNY
dkbit98
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December 24, 2025, 03:06:50 PM
 #3

3. Funds are settled as L-BTC in the merchant's wallet.
What services are you using in the background to convert Lightning to Liquid L-BTC?

There is already something similar with Aqua wallet and I think they are using atomic swaps via Boltz Exchange.
We can also us Boltz Exchange website directly for the same thing, and I think fees are lower that way.

EDIT:
I just saw you are also using Boltz Exchange, so you can just clarify if you are adding additional fees?

xenoky (OP)
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December 24, 2025, 07:55:39 PM
 #4

It's boltz rate without markup, see https://btcpos.cash/faq/#fees
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