Zero-fee commitments support #660
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👋 Hi! This PR is now in draft status. |
src/config.rs
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| /// `option_anchor_zero_fee_commitments`. All the caveats and warnings in | ||
| /// [`AnchorChannelsConfig`] still apply. | ||
| /// [`AnchorChannelsConfig`]: Config::anchor_channels_config | ||
| pub enable_zero_fee_commitments: bool, |
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I don't think we'll wan to add a new flag here that's probably hard to understand for the user? Rather, shouldn't we enable this for the user based on our current 'trust model settings' here?
Also, from these docs it's very unclear what this setting even does, when the user would want to enable it, what drawbacks it has, etc
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FWIW, thinking about it again it seems that we should never set negotiate_anchor_zero_fee_commitments until we're positive our chain sources support submitpackage/TRUC, no? And once we are positive, we would always set it?
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Rather, shouldn't we enable this for the user based on our current 'trust model settings' here?
Don't quite follow here could you expand ? I think 0FC channels merit an explicit setting somewhere rather than derived from trust model settings.
Also, from these docs it's very unclear what this setting even does, when the user would want to enable it, what drawbacks it has, etc
Yes will expand
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Don't quite follow here could you expand ? I think 0FC channels merit an explicit setting somewhere rather than derived from trust model settings.
Why, what do they fundamentally change for the user compared to our three current modes (fully trusted/keep 0-reserve, still try to claim/keep X reserve, try to claim)? Keep in mind that communicating these three modes to the user is already very hard, they always have a very hard time understanding what this means. Now, how would we communicate any changed assumptions for 0FC here? If we already trust our counterparty already, wouldn't we always want to enable 0FC for the UX improvements?
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Why, what do they fundamentally change for the user compared to our three current modes (fully trusted/keep 0-reserve, still try to claim/keep X reserve, try to claim)?
Let me see I don't think they change anything ? Whether to enable or disable 0FC channels is orthogonal to these modes ie trusted_peers_no_reserve and per_channel_reserve_sats should have no influence on whether we enable 0FC channels (only that per_channel_reserve_sats should be set to some value). I suspect you don't agree :)
If we already trust our counterparty already, wouldn't we always want to enable 0FC for the UX improvements?
It seems to me trusting our counterparty -> keeping 0 reserve is orthogonal to whether the user wants to enable 0FC channels ? for example a user trusts their counterparty, but wants to wait for greater adoption of Core v29+ before using 0FC channels.
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Marked as draft: I think we should wait for electrum and esplora submit package support before merging this PR. |
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Successfully opened some 0FC channels, made payments, and force closed them with the esplora diff in this branch. https://mutinynet.com/tx/508a954d85f5b7daf224a2fdc54ea6de9a26c0f62f7d58284bf61c3cdfd346e6 |
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AnchorChannelsConfig::enable_zero_fee_commitments3 participants
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