enhance pi configuration and skills

flake.lock

@@ -42,11 +42,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1782772816,
-        "narHash": "sha256-s9BuFv0mRuZx9C1MF8qPHRdcAK14ONi0A5m6E2wqOoM=",
+        "lastModified": 1784665499,
+        "narHash": "sha256-9BMxlTxCCDAeoNLtb1a/st7udtTIJep+wpUzquA29VU=",
         "owner": "nix-community",
         "repo": "bun2nix",
-        "rev": "5a39d717029e94163ac223aee8d5c9946cafed1c",
+        "rev": "0f2a1f0b6f42cebe3b149bf62d38754c5e0e9729",
         "type": "github"
       },
       "original": {
@@ -223,11 +223,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1784067614,
-        "narHash": "sha256-pOuOsr3EUz1Uh91FN6CFIhUrjZ+ZOhV6if5ENyomrxs=",
+        "lastModified": 1784877872,
+        "narHash": "sha256-Y270/EgraTJpT4uI84YJKpcqOcVFJwDBZpHYT4Ydtpw=",
         "owner": "numtide",
         "repo": "llm-agents.nix",
-        "rev": "5e0b7a75654e606175b917ec446c1858078696c9",
+        "rev": "f9a30d16da12fcf83886b66d3df9b1b8c168a3f7",
         "type": "github"
       },
       "original": {
@@ -329,11 +329,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1783816212,
-        "narHash": "sha256-2aZisVTVGSFEk3MYcOiWQp3zvwyzbqpktB69Rcfp150=",
+        "lastModified": 1784555310,
+        "narHash": "sha256-/FCliTPgiuV1owejZFNx3Ch9irdvkOfOFl+HHZ+DrtM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3b32825de172d0bc85664f495edb096b10862524",
+        "rev": "421eebfd0ec7bccd4abe826ce62d7e6e83129493",
         "type": "github"
       },
       "original": {
@@ -467,11 +467,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1780220602,
-        "narHash": "sha256-eynAfOmbmxJnkp7YewvCEbShNnnYJ9gLLqkzsYtBPeM=",
+        "lastModified": 1784369104,
+        "narHash": "sha256-47cxbcZODibHv3rELFQ9vZly0vUNkND/atn/U7HLeb0=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "db947814a175b7ca6ded66e21383d938df01c227",
+        "rev": "df3c0640565d04a0261253cdd89fce78ec50168a",
         "type": "github"
       },
       "original": {