diff --git a/config/fish/config.fish b/config/fish/config.fish
index ee19e52..bae9be6 100644
--- a/config/fish/config.fish
+++ b/config/fish/config.fish
@@ -25,7 +25,7 @@ if status is-interactive
     command -qv tree && alias dtree "tree -L 3 -a -d -I '.git' --charset X "
 
     command -qv wl-copy && alias cwd "wl-copy \$(pwd)"
-    command -qv wl-copy && alias copy-cmd  "wl-copy \$(echo \$history[1])"
+    command -qv wl-copy && alias cc  "wl-copy \$(echo \$history[1])"
 
     command -qv fabric-ai && alias ai "fabric-ai -p \$(fabric-ai -l | fzf)"
     command -qv xdg-open && alias o "xdg-open"
@@ -49,6 +49,10 @@ if status is-interactive
 
     command -qv jj && alias rev "jj log -G -T 'commit_id.short(8)'"
 
+    if command -qv shred
+        alias nuke "shred -u -n 1" 
+    end
+    
     if command -qv wt;
         alias wtc "wt switch --create --execute=$EDITOR"
         alias wts "wt switch"
@@ -84,6 +88,7 @@ if status is-interactive
 
     if test -x /usr/bin/fzf;
        /usr/bin/fzf --fish | source
+       alias zk="nvim \$(fzf --walker=file --walker-root=/home/sjb/Documents/nca-notes/ --preview 'bat --color=always -n --line-range :500 {}')"
        #set -gx FZF_CTRL_T_OPTS  "--preview 'bat --color=always -n --line-range :500 {}'"
        #set -gx FZF_ALT_C_OPTS "--preview 'eza --icons=always --color=always {} | head -200'"
     end
diff --git a/config/nvim/plugin/codecompanion.lua b/config/nvim/plugin/codecompanion.lua
index 18438da..06b868f 100644
--- a/config/nvim/plugin/codecompanion.lua
+++ b/config/nvim/plugin/codecompanion.lua
@@ -1,12 +1,11 @@
 
 vim.keymap.set({'n', 'v'}, '<leader>mct', '<cmd>CodeCompanionChat Toggle<cr>',  { noremap = true, silent = true, desc = "CC Toggle" })
 vim.keymap.set({'n', 'v'}, '<leader>mca', '<cmd>CodeCompanionActions<cr>',  { noremap = true, silent = true, desc = "CC Action" })
-vim.keymap.set({'n'}, '<leader>mce', '<cmd>CodeCompanion Explain<cr>', { desc = "CC Explain" })
+vim.keymap.set({'n', 'v'}, '<leader>mce', '<cmd>CodeCompanion Explain<cr>', { desc = "CC Explain" })
 vim.keymap.set({'n'}, '<leader>mcf', '<cmd>CodeCompanion Fix code<cr>', { desc = "CC fix" })
 vim.keymap.set({'v'}, '<leader>mcc', '<cmd>CodeCompanionChat Add<cr>',  { noremap = true, silent = true, desc = "CC Add" })
 vim.keymap.set({'v'}, '<leader>mcr', '<cmd>CodeCompanion Code Review<cr>',  { desc = 'Code Review' })
 vim.keymap.set({'v'}, '<leader>mco', '<cmd>CodeCompanion Optimize Performance<cr>',  { desc = 'Optimize Code' })
-vim.keymap.set({'v'}, '<leader>mce', '<cmd>CodeCompanion Explain Code<cr>',  { desc = 'Explain Code' })
 vim.keymap.set({'v'}, '<leader>mcg', '<cmd>CodeCompanion Generate Tests<cr>',  { desc = 'Generate Tests' })
 vim.keymap.set({'v'}, '<leader>mcd', '<cmd>CodeCompanion Debug Analysis<cr>',  { desc = 'Debug Analysis' })
 
@@ -14,20 +13,45 @@ vim.keymap.set({'v'}, '<leader>mcd', '<cmd>CodeCompanion Debug Analysis<cr>',  {
 -- build = "uv tool upgrade vectorcode", -- This helps keeping the CLI up-to-date
 vim.api.nvim_create_autocmd('PackChanged', { 
     callback = function()
-        vim.system({ "uv", "tool", "upgrade", "vectorcode" }, {}):wait()
+        vim.fn.jobstart({ "uv", "tool", "upgrade", "vectorcode" }, {
+            on_exit = function(_, exit_code, _)
+                if exit_code == 0 then
+                    vim.notify("vectorcode upgraded", vim.log.levels.INFO, { title = "CodeCompanion" })
+                else
+                    vim.notify("vectorcode upgrade failed (exit " .. exit_code .. ")", vim.log.levels.WARN, { title = "CodeCompanion" })
+                end
+            end,
+        })
     end
 })
 
 local function get_abacus_key()
-    local handle = io.popen("pass show abacus.ai-api")
-    if not handle then return "" end
-    local result = handle:read("*a")
-    handle:close()
-    -- Remove trailing newline that 'pass' often adds
-    return result:gsub("%s+", "")
+    local ok, res = pcall(vim.fn.systemlist, "pass show abacus.ai-api")
+    if not ok or not res or vim.tbl_isempty(res) then
+        return ""
+    end
+    -- systemlist returns lines; join and trim whitespace
+    local key = table.concat(res, "\n")
+    key = key:gsub("^%s+", ""):gsub("%s+$", "")
+    return key
 end
 
-local codecompanion = require("codecompanion")
+local function copilot_supports_sampling(self)
+    local model = self.schema.model.default
+    if type(model) == "function" then
+        model = model(self)
+    end
+
+    model = type(model) == "string" and model:lower() or ""
+    return not model:find("gpt%-5", 1, false) and not model:find("codex", 1, false)
+end
+
+
+local ok, codecompanion = pcall(require, "codecompanion")
+if not ok or not codecompanion then
+    vim.notify("codecompanion not available", vim.log.levels.ERROR)
+    return
+end
 codecompanion.setup({
     adapters = {
         http = {
@@ -163,13 +187,14 @@ codecompanion.setup({
                 })
             end,
             ollama = function()
+                local ollama_url = os.getenv("OLLAMA_URL") or "http://localhost:11434"
                 return require("codecompanion.adapters").extend("ollama", {
                     env = {
-                        url = "http://129.100.33.66:11434",
+                        url = ollama_url,
                     },
                     schema = {
                         model = {
-                            default = "qwen3.5", -- change to whatever you pulled
+                            default = "qwen3.5",
                         },
                     },
                 })
@@ -180,6 +205,17 @@ codecompanion.setup({
                         model = {
                             default = "gpt-5-mini", -- Consistent model choice
                         },
+                        -- CodeCompanion only skips schema fields when `enabled` is a
+                        -- function that returns false.
+                        temperature = {
+                            enabled = copilot_supports_sampling,
+                        },
+                        top_p = {
+                            enabled = copilot_supports_sampling,
+                        },
+                        n = {
+                            enabled = copilot_supports_sampling,
+                        },
                         max_tokens = {
                             default = 16284,
                         }
@@ -254,7 +290,7 @@ codecompanion.setup({
         agentskills = {
             opts = {
                 paths = {
-                    { "~/.agents/skills", recursive = true }, 
+                    { vim.fn.expand("~/.agents/skills"), recursive = true }, 
                 },
             },
         },
@@ -325,26 +361,15 @@ codecompanion.setup({
                         local max_length = options.max_length or 200000  -- 200KB default
                         local timeout = options.timeout or 60
 
-                        -- Use curl for better control
-                        local cmd = string.format(
-                            'curl -L -s --max-time %d --user-agent "CodeCompanion-Neovim" "%s"',
-                            timeout,
-                            url
-                        )
+                        local res = vim.system({
+                            "curl", "-L", "-s", "--max-time", tostring(timeout), "--user-agent", "CodeCompanion-Neovim", url
+                        }, { timeout = (timeout + 5) * 1000 }):wait()
 
-                        local handle = io.popen(cmd)
-                        if not handle then
-                            return nil, "Failed to execute curl"
+                        if not res or res.code ~= 0 then
+                            return nil, "Failed to fetch URL: " .. tostring(res and res.code or "unknown")
                         end
 
-                        local result = handle:read("*a")
-                        local success = handle:close()
-
-                        if not success then
-                            return nil, "Curl command failed"
-                        end
-
-                        -- Truncate if too long
+                        local result = res.output or ""
                         if #result > max_length then
                             result = result:sub(1, max_length) .. "\n[... truncated at " .. max_length .. " characters ...]"
                         end
@@ -551,7 +576,7 @@ codecompanion.setup({
                 modes = { "v" },
                 adapter = {
                     name = "copilot",
-                    model = "chatgpt-5.1-codex",
+                    model = "chatgpt-5.3-codex",
                 },
             },
             prompts = {
@@ -578,7 +603,7 @@ codecompanion.setup({
                 modes = { "v" },
                 adapter = {
                     name = "copilot",
-                    model = "chatgpt-5.2-codex",
+                    model = "chatgpt-5.3-codex",
                 },
             },
             prompts = {
@@ -605,7 +630,7 @@ codecompanion.setup({
 
                 adapter = {
                     name = "copilot",
-                    model = "chatgpt-5.2-codex",
+                    model = "chatgpt-5.3-codex",
                 },
             },
             prompts = {
@@ -650,7 +675,7 @@ codecompanion.setup({
 
                 adapter = {
                     name = "copilot",
-                    model = "chatgpt-5.2-codex",
+                    model = "chatgpt-5.4",
                 },
             },
             prompts = {
@@ -661,8 +686,9 @@ codecompanion.setup({
                 {
                     role = "user",
                     content = function(context)
+
                         local code = require("codecompanion.helpers.actions").get_code(context.start_line, context.end_line)
-                        return fmt(
+                        return string.format(
                             [[Please review the architecture and design of this code from buffer %d:
 
     ```%s