https://kusama.subsquare.io/referenda/567

• Acuity Index currently uses Rust types to decode events, but this has problems.
• Older events might not work if the chain has been updated.
• Fixing this for all past versions would be hard and slow.
• A better way is to use field_values() instead of decoding into types.
• This makes indexing easier and works for all chain versions.
• Chains can be set up using a simple TOML file.
• The new method stores event details for queries.
• Full details are in the proposal link.