The Data Availability Layer (DAL) is a “rollup booster” for Etherlink, the EVM compatibility layer for Tezos. It expands how much data smart rollups can post to Tezos L1, so throughput can scale as usage ramps.
Nomadic Labs staff software engineer Thomas Letan explains why it matters, and how it fits into the road to Tezos X.
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00:00 Who is Thomas Letan and what he works on at Nomadic Labs
00:16 What the Data Availability Layer (DAL) is and why it matters for Etherlink
00:31 The current constraint and what DAL changes
00:44 Scaling ambition: handling much more activity on Etherlink
00:53 Quick maths: why data capacity becomes the bottleneck at scale
01:05 DAL in a nutshell: unlocking Etherlink’s data throughput
01:11 Smart rollups and the PVM: proving execution is correct
01:48 Why DAL is a “rollup booster” for Tezos and Layer 2
02:05 From DAL to Tezos X: capacity, predictable costs, and smoother operations
02:47 Choosing where to deploy: Tezos Layer 1 vs Etherlink today
03:23 What’s next: Tezos X and a more open platform for builders