ci: improvements in scripting and testing

flake.lock

@@ -5,11 +5,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1692351612,
-        "narHash": "sha256-KTGonidcdaLadRnv9KFgwSMh1ZbXoR/OBmPjeNMhFwU=",
+        "lastModified": 1721727458,
+        "narHash": "sha256-r/xppY958gmZ4oTfLiHN0ZGuQ+RSTijDblVgVLFi1mw=",
         "owner": "nix-community",
         "repo": "naersk",
-        "rev": "78789c30d64dea2396c9da516bbcc8db3a475207",
+        "rev": "3fb418eaf352498f6b6c30592e3beb63df42ef11",
         "type": "github"
       },
       "original": {
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1693060755,
-        "narHash": "sha256-KNsbfqewEziFJEpPR0qvVz4rx0x6QXxw1CcunRhlFdk=",
+        "lastModified": 1723151389,
+        "narHash": "sha256-9AVY0ReCmSGXHrlx78+1RrqcDgVSRhHUKDVV1LLBy28=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c66ccfa00c643751da2fd9290e096ceaa30493fc",
+        "rev": "13fe00cb6c75461901f072ae62b5805baef9f8b2",
         "type": "github"
       },
       "original": {
@@ -34,16 +34,16 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1693087214,
-        "narHash": "sha256-Kn1SSqRfPpqcI1MDy82JXrPT1WI8c03TA2F0xu6kS+4=",
+        "lastModified": 1722995383,
+        "narHash": "sha256-UzuXo7ZM8ZK0SkWFhHocKkLSGQPHS4JxaE1jvVR4fUo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f155f0cf4ea43c4e3c8918d2d327d44777b6cad4",
+        "rev": "957d95fc8b9bf1eb60d43f8d2eba352b71bbf2be",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-23.05",
+        "ref": "nixos-unstable",
         "type": "indirect"
       }
     },
@@ -74,11 +74,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1692799911,
-        "narHash": "sha256-3eihraek4qL744EvQXsK1Ha6C3CR7nnT8X2qWap4RNk=",
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "f9e7cf818399d17d347f847525c5a5a8032e4e44",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
         "type": "github"
       },
       "original": {