solana-instructions-sysvar is used at run time in 162 crates (of which 8 optionally). It is a direct run-time dependency in 5 crates. It's used only as a dev dependency in 34 crates (of which 1 directly).

Depender (with downloads and own rev deps) solana-instructions-sysvar version
296K 596 solana-program ^2.2.1
89K 17 solana-sysvar ^2.2.1
20K 10 solana-svm =2.2.1
2.2K 4 litesvm ^2.2
257K 651 solana-sdk dev ^2.2.1
73K 6 solana-secp256k1-program dev ^2.2.1