anchor.diff:  
     vimoutliner = buildVimPluginFrom2Nix {
       pname = "vimoutliner";
  -    version = "2020-10-26";
  +    version = "2021-04-20";
       src = fetchFromGitHub {
         owner = "vimoutliner";
         repo = "vimoutliner";
  -      rev = "d198aa72c70270f1330f4237bbf853efaaa79723";
  -      sha256 = "05wcqs36qn8f3vcy9xi2cf0yyp7yzawlxqvpjhbad6lm52vzsabs";
  +      rev = "054f957779dff8e5fbb859e8cfbca06f1ed9e7f0";
  +      sha256 = "1bsfrma06mkigr1jhzic98z4v1gckzrjv908vx2wlbjq9cdv7d39";
       };
       meta.homepage = "https://github.com/vimoutliner/vimoutliner/";
     };
  
positive.code:     src = fetchFromGitHub {
        owner = "hoob3rt";
        repo = "lualine.nvim";
        rev = "9e2492fd0772767db6d81c9f6eaac800f596cb51";
        sha256 = "1qzzj6903p4jyb9mcncsra74dab37yffb22y9dzs2ihx7pd8w3by";
      };
      meta.homepage = "https://github.com/hoob3rt/lualine.nvim/";
    };
  
negative.code: 
    nvim-toggleterm-lua = buildVimPluginFrom2Nix {
      pname = "nvim-toggleterm-lua";
      version = "2021-04-20";
      src = fetchFromGitHub {
        owner = "akinsho";
        repo = "nvim-toggleterm.lua";
        rev = "7c9d8c51841c3335818d04b684e93c655b5d61c9";
        sha256 = "04j34wyv7q9n7yld7k7cxxm92al3h7x3rkcnm1q61scwb1xf354r";
      };
      meta.homepage = "https://github.com/akinsho/nvim-toggleterm.lua/";
    };
  
    nvim-tree-lua = buildVimPluginFrom2Nix {
      pname = "nvim-tree-lua";
      version = "2021-04-20";
      src = fetchFromGitHub {
        owner = "kyazdani42";
        repo = "nvim-tree.lua";
        rev = "983963779d6696c5b6b4aa14f874d85f00941b4e";
        sha256 = "16viqhsh1xn5grv631i6fy5kav65g472yyyz0m4wy4gvi2mb7sf2";
      };
      meta.homepage = "https://github.com/kyazdani42/nvim-tree.lua/";
    };
  