Top 15 cryptocurrency blockchain ecosystems by their level of github events, along with their growth in the category over the past year. This list is based on each ecosystem's amount of 'pure' development activity events, rather than just 'commits':

1) Ethereum #ETH: +0.8%
2) BNB Chain #BNB: +3.0%
3) Polygon #MATIC #POL: -1.6%
4) Cosmos #ATOM: +7.9%
5) Arbitrum #ARB: +11.6%
6) Optimism #OP: +39.3%
7) Avalanche #AVAX: +16.6%
8) Harmony #ONE: +5.9%
9) Polkadot #DOT: +1.8%
10) Solana #SOL: +12.1%
11) Osmosis #OSMO: +10.7%
12) Cardano #ADA: +16.3%
13) Gnosis #GNO: +2.4%
14) Fantom #FTM: +31.7%
15) Near #NEAR: +2.6%

@WiseAnalyze (source)