diff --git a/pkg/mining/profile_manager.go b/pkg/mining/profile_manager.go
index 5bb2b0c..ec1e926 100644
--- a/pkg/mining/profile_manager.go
+++ b/pkg/mining/profile_manager.go
@@ -13,15 +13,15 @@ import (
 
 const profileConfigFileName = "mining_profiles.json"
 
-// pm, err := NewProfileManager()
-// pm.CreateProfile(profile)
+// profileManager, err := NewProfileManager()
+// profileManager.CreateProfile(profile)
 type ProfileManager struct {
 	mutex      sync.RWMutex
 	profiles   map[string]*MiningProfile
 	configPath string
 }
 
-// pm, err := NewProfileManager()
+// profileManager, err := NewProfileManager()
 // if err != nil { return err }
 func NewProfileManager() (*ProfileManager, error) {
 	configPath, err := xdg.ConfigFile(filepath.Join("lethean-desktop", profileConfigFileName))
@@ -44,7 +44,7 @@ func NewProfileManager() (*ProfileManager, error) {
 	return profileManager, nil
 }
 
-// pm.loadProfiles() // call after acquiring pm.mutex.Lock() if needed externally
+// profileManager.loadProfiles() // call after acquiring profileManager.mutex.Lock() if needed externally
 func (profileManager *ProfileManager) loadProfiles() error {
 	profileManager.mutex.Lock()
 	defer profileManager.mutex.Unlock()
@@ -67,7 +67,7 @@ func (profileManager *ProfileManager) loadProfiles() error {
 	return nil
 }
 
-// pm.saveProfiles() // caller must hold pm.mutex before calling; uses atomic write (temp→sync→rename)
+// profileManager.saveProfiles() // caller must hold profileManager.mutex before calling; uses atomic write (temp→sync→rename)
 func (profileManager *ProfileManager) saveProfiles() error {
 	profileList := make([]*MiningProfile, 0, len(profileManager.profiles))
 	for _, profile := range profileManager.profiles {
@@ -82,7 +82,7 @@ func (profileManager *ProfileManager) saveProfiles() error {
 	return AtomicWriteFile(profileManager.configPath, data, 0600)
 }
 
-// created, err := pm.CreateProfile(&MiningProfile{Name: "XMRig CPU", MinerType: "xmrig"})
+// created, err := profileManager.CreateProfile(&MiningProfile{Name: "XMRig CPU", MinerType: "xmrig"})
 func (profileManager *ProfileManager) CreateProfile(profile *MiningProfile) (*MiningProfile, error) {
 	profileManager.mutex.Lock()
 	defer profileManager.mutex.Unlock()
@@ -99,8 +99,8 @@ func (profileManager *ProfileManager) CreateProfile(profile *MiningProfile) (*Mi
 	return profile, nil
 }
 
-// profile, ok := pm.GetProfile("abc-123")
-// if !ok { return errors.New("profile not found") }
+// profile, ok := profileManager.GetProfile("abc-123")
+// if !ok { return core.E("profile.Get", "profile not found", nil) }
 func (profileManager *ProfileManager) GetProfile(id string) (*MiningProfile, bool) {
 	profileManager.mutex.RLock()
 	defer profileManager.mutex.RUnlock()
@@ -108,8 +108,8 @@ func (profileManager *ProfileManager) GetProfile(id string) (*MiningProfile, boo
 	return profile, exists
 }
 
-// profiles := pm.GetAllProfiles()
-// for _, p := range profiles { render(p) }
+// profiles := profileManager.GetAllProfiles()
+// for _, profile := range profiles { render(profile) }
 func (profileManager *ProfileManager) GetAllProfiles() []*MiningProfile {
 	profileManager.mutex.RLock()
 	defer profileManager.mutex.RUnlock()
@@ -122,7 +122,7 @@ func (profileManager *ProfileManager) GetAllProfiles() []*MiningProfile {
 }
 
 // profile.Name = "XMRig GPU"
-// if err := pm.UpdateProfile(profile); err != nil { return err }
+// if err := profileManager.UpdateProfile(profile); err != nil { return err }
 func (profileManager *ProfileManager) UpdateProfile(profile *MiningProfile) error {
 	profileManager.mutex.Lock()
 	defer profileManager.mutex.Unlock()
@@ -145,7 +145,7 @@ func (profileManager *ProfileManager) UpdateProfile(profile *MiningProfile) erro
 	return nil
 }
 
-// if err := pm.DeleteProfile("abc-123"); err != nil { return err }
+// if err := profileManager.DeleteProfile("abc-123"); err != nil { return err }
 func (profileManager *ProfileManager) DeleteProfile(id string) error {
 	profileManager.mutex.Lock()
 	defer profileManager.mutex.Unlock()