diff --git a/.luarc.json b/.luarc.json
index e0f7a7c..19558f6 100644
--- a/.luarc.json
+++ b/.luarc.json
@@ -1,16 +1,8 @@
 {
-  "runtime": {
-    "version": "LuaJIT",
-    "path": ["lua/?.lua", "lua/?/init.lua"]
-  },
-  "diagnostics": {
-    "globals": ["vim"]
-  },
-  "workspace": {
-    "library": ["$VIMRUNTIME/lua", "${3rd}/luv/library", "${3rd}/busted/library"],
-    "checkThirdParty": false
-  },
-  "completion": {
-    "callSnippet": "Replace"
-  }
+  "runtime.version": "LuaJIT",
+  "runtime.path": ["lua/?.lua", "lua/?/init.lua"],
+  "diagnostics.globals": ["vim"],
+  "workspace.library": ["$VIMRUNTIME/lua", "${3rd}/luv/library"],
+  "workspace.checkThirdParty": false,
+  "completion.callSnippet": "Replace"
 }
diff --git a/doc/cp.nvim.txt b/doc/cp.nvim.txt
index 27563a1..49cdaf7 100644
--- a/doc/cp.nvim.txt
+++ b/doc/cp.nvim.txt
@@ -888,116 +888,6 @@ Functions ~
         Parameters: ~
             {bufnr}  (integer) Buffer handle
 
-==============================================================================
-STATUSLINE INTEGRATION                                        *cp-statusline*
-
-cp.nvim exposes its runtime state through a public module that can be queried
-from any statusline plugin. Import it with: >lua
-    local state = require('cp.state')
-<
-All getters return nil when no problem is active, so guard every value before
-use. Calling any getter outside a CP context is safe and has no side effects.
-
-State API ~
-                                                                  *cp.State*
-The following getters are available for statusline use:
-
-    get_platform()      (string?) Platform id. e.g. "codeforces", "atcoder"
-    get_contest_id()    (string?) Contest id. e.g. "1933", "abc324"
-    get_problem_id()    (string?) Problem id. e.g. "A", "B"
-    get_language()      (string?) Language id. e.g. "cpp", "python"
-    get_base_name()     (string?) Derived filename stem. e.g. "1933a"
-    get_source_file()   (string?) Full source filename. e.g. "1933a.cc"
-    get_active_panel()  (string?) Non-nil when the test panel is open.
-
-Recipe: vanilla statusline ~
-
-Set vim.o.statusline from an autocommand so it is recalculated on every
-BufEnter: >lua
-    local function cp_component()
-      local state = require('cp.state')
-      local platform = state.get_platform()
-      if not platform then
-        return ''
-      end
-      local parts = {
-        platform,
-        state.get_contest_id(),
-        state.get_problem_id(),
-        state.get_language(),
-      }
-      local filtered = {}
-      for _, v in ipairs(parts) do
-        if v then filtered[#filtered + 1] = v end
-      end
-      return '[' .. table.concat(filtered, ' · ') .. ']'
-    end
-
-    vim.api.nvim_create_autocmd({ 'BufEnter', 'User' }, {
-      callback = function()
-        vim.o.statusline = cp_component() .. ' %f %=%l:%c'
-      end
-    })
-<
-
-Recipe: lualine ~
-
-Add a custom component to any lualine section. The cond field hides the
-component entirely when no problem is active: >lua
-    local function cp_lualine()
-      local state = require('cp.state')
-      local parts = {
-        state.get_platform(),
-        state.get_contest_id(),
-        state.get_problem_id(),
-        state.get_language(),
-      }
-      local filtered = {}
-      for _, v in ipairs(parts) do
-        if v then filtered[#filtered + 1] = v end
-      end
-      return table.concat(filtered, ' · ')
-    end
-
-    require('lualine').setup({
-      sections = {
-        lualine_c = {
-          {
-            cp_lualine,
-            cond = function()
-              return require('cp.state').get_platform() ~= nil
-            end,
-          },
-        },
-      },
-    })
-<
-
-Recipe: heirline ~
-
-Build a heirline component using a provider and condition: >lua
-    local CpComponent = {
-      condition = function()
-        return require('cp.state').get_platform() ~= nil
-      end,
-      provider = function()
-        local state = require('cp.state')
-        local parts = {
-          state.get_platform(),
-          state.get_contest_id(),
-          state.get_problem_id(),
-          state.get_language(),
-        }
-        local filtered = {}
-        for _, v in ipairs(parts) do
-          if v then filtered[#filtered + 1] = v end
-        end
-        return '[' .. table.concat(filtered, ' · ') .. ']'
-      end,
-    }
-<
-Include CpComponent in your heirline StatusLine spec wherever desired.
-
 ==============================================================================
 PANEL KEYMAPS                                                  *cp-panel-keys*
 
diff --git a/lua/cp/cache.lua b/lua/cp/cache.lua
index 33342c2..efdcad7 100644
--- a/lua/cp/cache.lua
+++ b/lua/cp/cache.lua
@@ -346,8 +346,6 @@ function M.get_data_pretty()
   return vim.inspect(cache_data)
 end
 
-function M.get_raw_cache()
-  return cache_data
-end
+M._cache = cache_data
 
 return M
diff --git a/lua/cp/health.lua b/lua/cp/health.lua
index 97595d6..d3a3fea 100644
--- a/lua/cp/health.lua
+++ b/lua/cp/health.lua
@@ -13,7 +13,7 @@ local function check()
     vim.health.error('cp.nvim requires Neovim 0.10.0+')
   end
 
-  local uname = vim.uv.os_uname()
+  local uname = vim.loop.os_uname()
   if uname.sysname == 'Windows_NT' then
     vim.health.error('Windows is not supported')
   end
diff --git a/lua/cp/runner/run.lua b/lua/cp/runner/run.lua
index 4e4a8f6..36a560c 100644
--- a/lua/cp/runner/run.lua
+++ b/lua/cp/runner/run.lua
@@ -276,35 +276,26 @@ function M.run_all_test_cases(indices, debug, on_each, on_done)
     end
   end
 
-  if #to_run == 0 then
-    logger.log(
-      ('Finished %s %d test cases.'):format(debug and 'debugging' or 'running', 0),
-      vim.log.levels.INFO,
-      true
-    )
-    on_done(panel_state.test_cases)
-    return
-  end
+  local function run_next(pos)
+    if pos > #to_run then
+      logger.log(
+        ('Finished %s %d test cases.'):format(debug and 'debugging' or 'running', #to_run),
+        vim.log.levels.INFO,
+        true
+      )
+      on_done(panel_state.test_cases)
+      return
+    end
 
-  local total = #to_run
-  local remaining = total
-
-  for _, idx in ipairs(to_run) do
-    M.run_test_case(idx, debug, function()
+    M.run_test_case(to_run[pos], debug, function()
       if on_each then
-        on_each(idx, total)
-      end
-      remaining = remaining - 1
-      if remaining == 0 then
-        logger.log(
-          ('Finished %s %d test cases.'):format(debug and 'debugging' or 'running', total),
-          vim.log.levels.INFO,
-          true
-        )
-        on_done(panel_state.test_cases)
+        on_each(pos, #to_run)
       end
+      run_next(pos + 1)
     end)
   end
+
+  run_next(1)
 end
 
 ---@return PanelState
diff --git a/lua/cp/scraper.lua b/lua/cp/scraper.lua
index 29cc63e..73b6177 100644
--- a/lua/cp/scraper.lua
+++ b/lua/cp/scraper.lua
@@ -57,7 +57,7 @@ local function run_scraper(platform, subcommand, args, opts)
   env.CONDA_PREFIX = ''
 
   if opts and opts.ndjson then
-    local uv = vim.uv
+    local uv = vim.loop
     local stdout = uv.new_pipe(false)
     local stderr = uv.new_pipe(false)
     local buf = ''
diff --git a/lua/cp/setup.lua b/lua/cp/setup.lua
index 44c993d..0e8080b 100644
--- a/lua/cp/setup.lua
+++ b/lua/cp/setup.lua
@@ -10,13 +10,17 @@ local state = require('cp.state')
 
 local function apply_template(bufnr, lang_id, platform)
   local config = config_module.get_config()
-  local eff = config.runtime.effective[platform] and config.runtime.effective[platform][lang_id]
+  local eff = config.runtime.effective[platform]
+    and config.runtime.effective[platform][lang_id]
   if not eff or not eff.template then
     return
   end
   local path = vim.fn.expand(eff.template)
   if vim.fn.filereadable(path) ~= 1 then
-    logger.log(('[cp.nvim] template not readable: %s'):format(path), vim.log.levels.WARN)
+    logger.log(
+      ('[cp.nvim] template not readable: %s'):format(path),
+      vim.log.levels.WARN
+    )
     return
   end
   local lines = vim.fn.readfile(path)
@@ -194,7 +198,7 @@ function M.setup_contest(platform, contest_id, problem_id, language)
       contest_id = contest_id,
       language = lang,
       requested_problem_id = problem_id,
-      token = vim.uv.hrtime(),
+      token = vim.loop.hrtime(),
     })
 
     logger.log('Fetching contests problems...', vim.log.levels.INFO, true)
diff --git a/lua/cp/utils.lua b/lua/cp/utils.lua
index 285ebf8..b602940 100644
--- a/lua/cp/utils.lua
+++ b/lua/cp/utils.lua
@@ -5,7 +5,7 @@ local logger = require('cp.log')
 local _nix_python = nil
 local _nix_discovered = false
 
-local uname = vim.uv.os_uname()
+local uname = vim.loop.os_uname()
 
 local _time_cached = false
 local _time_path = nil
@@ -336,7 +336,7 @@ function M.timeout_capability()
 end
 
 function M.cwd_executables()
-  local uv = vim.uv
+  local uv = vim.uv or vim.loop
   local req = uv.fs_scandir('.')
   if not req then
     return {}