Draft of following flake-lang everywhere

[jaredponn]

More putting follows everywhere.

Before this PR:

$ time nix flake lock

real	0m1.152s
user	0m1.112s
sys	0m0.035s

$ cat flake.lock | jq '.nodes | keys' | awk -e 'BEGIN { i = 0 } /nixpkgs/ { i++ } END {print i} '
149

EDIT: we don't have such nice performance anymore -- see below
After this PR:

$ time nix flake lock
real	0m0.752s
user	0m0.676s
sys	0m0.060s

$ cat flake.lock | jq '.nodes | keys' | awk -e 'BEGIN { i = 0 } /nixpkgs/ { i++ } END {print i }'
115

[bladyjoker]

Thanks! If you could make sure the lb-cardano-demo works when these changes are done that would be great. It's basically our only canary test :D

[jaredponn]

Okay, some final numbers

$ time nix flake lock
real	0m12.575s
user	0m12.342s
sys	0m0.264s

$ cat flake.lock | jq '.nodes | keys' | awk -e 'BEGIN { i = 0 } /nixpkgs/ { i++ } END {print i }'
375

Further work

If we want to get this to back to be the numbers in the original PR, we'll need to modify the plutus-ledger-api-rust since that's contributing a significant overhead e.g. the following patch

diff --git a/flake.nix b/flake.nix
index 792c091..5b02a10 100644
--- a/flake.nix
+++ b/flake.nix
@@ -39,10 +39,10 @@
     };
 
     # Rust runtime
-    plutus-ledger-api-rust = {
-      url = "github:mlabs-haskell/plutus-ledger-api-rust";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
+    # plutus-ledger-api-rust = {
+    #   url = "github:mlabs-haskell/plutus-ledger-api-rust";
+    #   inputs.nixpkgs.follows = "nixpkgs";
+    # };
   };
 
   outputs = inputs@{ flake-parts, ... }:

gives us the following

$ time nix flake lock

real	0m0.942s
user	0m0.852s
sys	0m0.066s

$ cat flake.lock | jq '.nodes | keys' | awk -e 'BEGIN { i = 0 } /nixpkgs/ { i++ } END {print i }'
117

(of course, we wouldn't want to just comment it out because we probably need it somewhere -- I'm fairly certain the problem is the cyclic reference from lambda-buffers to plutus-ledger-api-rust; and if we could remove the cyclic reference, we could make plutus-ledger-api-rust follow lambda-buffer's flake-lang to significantly reduce the flake.lock size.)

[bladyjoker]

Sorry for the delay!