diff --git a/eslint.config.js b/eslint.config.js
index 9a8bb805..c3a5e843 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -1,7 +1,6 @@
 // For more info, see https://github.com/storybookjs/eslint-plugin-storybook#configuration-flat-config-format
 import js from '@eslint/js'
 import compat from 'eslint-plugin-compat'
-import eslintPluginPrettierRecommended from 'eslint-plugin-prettier/recommended'
 import reactHooks from 'eslint-plugin-react-hooks'
 import reactRefresh from 'eslint-plugin-react-refresh'
 import storybook from 'eslint-plugin-storybook'
@@ -13,7 +12,7 @@ import tseslint from 'typescript-eslint'
 export default defineConfig(
   { ignores: ['dist', './.storybook/**', './storybook-static/**'] },
   {
-    extends: [js.configs.recommended, ...tseslint.configs.recommended, eslintPluginPrettierRecommended],
+    extends: [js.configs.recommended, ...tseslint.configs.recommended],
     files: ['**/*.{ts,tsx}'],
     languageOptions: {
       ecmaVersion: 2023,
@@ -38,11 +37,27 @@ export default defineConfig(
       ],
     },
   },
+  {
+    ignores: [
+      './src/components/ui/*.tsx', // shadcn components
+      './src/**/*.stories.tsx',
+      './src/components/settings/CollaboratorFeesForm.tsx', // TODO: remove
+    ],
+    files: ['./src/**/*.{ts,tsx}'],
+    languageOptions: {
+      parserOptions: {
+        projectService: true,
+      },
+    },
+    extends: [...tseslint.configs.recommendedTypeChecked],
+    rules: {
+      '@typescript-eslint/no-redundant-type-constituents': ['off'], // shows intent
+    },
+  },
   {
     extends: [eslintPluginUnicorn.configs.recommended],
     ignores: [
       './src/components/ui/*.tsx', // shadcn components
-      './src/components/earn/CreateFidelityBondDialog.tsx', // TODO: remove
       './src/components/settings/CollaboratorFeesForm.tsx', // TODO: remove
     ],
     rules: {
@@ -60,11 +75,7 @@ export default defineConfig(
       'unicorn/catch-error-name': [
         'error',
         {
-          ignore: [
-            String.raw`^error\d*$`,
-            '_ignoredOnPurpose',
-            'e', // TODO: remove
-          ],
+          ignore: ['_ignoredOnPurpose'],
         },
       ],
       'unicorn/numeric-separators-style': [
diff --git a/package-lock.json b/package-lock.json
index 46217aa8..410f6fe7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -72,9 +72,7 @@
         "@vitest/coverage-v8": "4.0.9",
         "conventional-changelog": "7.1.1",
         "eslint": "9.39.2",
-        "eslint-config-prettier": "10.1.8",
         "eslint-plugin-compat": "6.1.0",
-        "eslint-plugin-prettier": "5.5.5",
         "eslint-plugin-react-hooks": "7.0.1",
         "eslint-plugin-react-refresh": "0.5.0",
         "eslint-plugin-storybook": "10.2.5",
@@ -1353,19 +1351,6 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
-    "node_modules/@pkgr/core": {
-      "version": "0.2.9",
-      "resolved": "https://registry.npmjs.org/@pkgr/core/-/core-0.2.9.tgz",
-      "integrity": "sha512-QNqXyfVS2wm9hweSYD2O7F0G06uurj9kZ96TRQE5Y9hU7+tgdZwIkbAKc5Ocy1HxEY2kuDQa6cQ1WRs/O5LFKA==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": "^12.20.0 || ^14.18.0 || >=16.0.0"
-      },
-      "funding": {
-        "url": "https://opencollective.com/pkgr"
-      }
-    },
     "node_modules/@playwright/test": {
       "version": "1.58.1",
       "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.58.1.tgz",
@@ -6289,23 +6274,6 @@
         }
       }
     },
-    "node_modules/eslint-config-prettier": {
-      "version": "10.1.8",
-      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-10.1.8.tgz",
-      "integrity": "sha512-82GZUjRS0p/jganf6q1rEO25VSoHH0hKPCTrgillPjdI/3bgBhAE1QzHrHTizjpRvy6pGAvKjDJtk2pF9NDq8w==",
-      "dev": true,
-      "license": "MIT",
-      "peer": true,
-      "bin": {
-        "eslint-config-prettier": "bin/cli.js"
-      },
-      "funding": {
-        "url": "https://opencollective.com/eslint-config-prettier"
-      },
-      "peerDependencies": {
-        "eslint": ">=7.0.0"
-      }
-    },
     "node_modules/eslint-plugin-compat": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/eslint-plugin-compat/-/eslint-plugin-compat-6.1.0.tgz",
@@ -6355,37 +6323,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/eslint-plugin-prettier": {
-      "version": "5.5.5",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-5.5.5.tgz",
-      "integrity": "sha512-hscXkbqUZ2sPithAuLm5MXL+Wph+U7wHngPBv9OMWwlP8iaflyxpjTYZkmdgB4/vPIhemRlBEoLrH7UC1n7aUw==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "prettier-linter-helpers": "^1.0.1",
-        "synckit": "^0.11.12"
-      },
-      "engines": {
-        "node": "^14.18.0 || >=16.0.0"
-      },
-      "funding": {
-        "url": "https://opencollective.com/eslint-plugin-prettier"
-      },
-      "peerDependencies": {
-        "@types/eslint": ">=8.0.0",
-        "eslint": ">=8.0.0",
-        "eslint-config-prettier": ">= 7.0.0 <10.0.0 || >=10.1.0",
-        "prettier": ">=3.0.0"
-      },
-      "peerDependenciesMeta": {
-        "@types/eslint": {
-          "optional": true
-        },
-        "eslint-config-prettier": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/eslint-plugin-react-hooks": {
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/eslint-plugin-react-hooks/-/eslint-plugin-react-hooks-7.0.1.tgz",
@@ -6644,13 +6581,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/fast-diff": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/fast-diff/-/fast-diff-1.3.0.tgz",
-      "integrity": "sha512-VxPP4NqbUjj6MaAOafWeUn2cXWLcCtljklUtZf0Ind4XQ+QPtmA0b18zZy0jIQx+ExRVCR/ZQpBmik5lXshNsw==",
-      "dev": true,
-      "license": "Apache-2.0"
-    },
     "node_modules/fast-json-stable-stringify": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
@@ -8540,19 +8470,6 @@
         "url": "https://github.com/prettier/prettier?sponsor=1"
       }
     },
-    "node_modules/prettier-linter-helpers": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/prettier-linter-helpers/-/prettier-linter-helpers-1.0.1.tgz",
-      "integrity": "sha512-SxToR7P8Y2lWmv/kTzVLC1t/GDI2WGjMwNhLLE9qtH8Q13C+aEmuRlzDst4Up4s0Wc8sF2M+J57iB3cMLqftfg==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "fast-diff": "^1.1.2"
-      },
-      "engines": {
-        "node": ">=6.0.0"
-      }
-    },
     "node_modules/prettier-plugin-tailwindcss": {
       "version": "0.7.2",
       "resolved": "https://registry.npmjs.org/prettier-plugin-tailwindcss/-/prettier-plugin-tailwindcss-0.7.2.tgz",
@@ -9724,22 +9641,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/synckit": {
-      "version": "0.11.12",
-      "resolved": "https://registry.npmjs.org/synckit/-/synckit-0.11.12.tgz",
-      "integrity": "sha512-Bh7QjT8/SuKUIfObSXNHNSK6WHo6J1tHCqJsuaFDP7gP0fkzSfTxI8y85JrppZ0h8l0maIgc2tfuZQ6/t3GtnQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "@pkgr/core": "^0.2.9"
-      },
-      "engines": {
-        "node": "^14.18.0 || >=16.0.0"
-      },
-      "funding": {
-        "url": "https://opencollective.com/synckit"
-      }
-    },
     "node_modules/tailwind-merge": {
       "version": "3.4.0",
       "resolved": "https://registry.npmjs.org/tailwind-merge/-/tailwind-merge-3.4.0.tgz",
diff --git a/package.json b/package.json
index 9eed5d72..9674b380 100644
--- a/package.json
+++ b/package.json
@@ -115,9 +115,7 @@
     "@vitest/coverage-v8": "4.0.9",
     "conventional-changelog": "7.1.1",
     "eslint": "9.39.2",
-    "eslint-config-prettier": "10.1.8",
     "eslint-plugin-compat": "6.1.0",
-    "eslint-plugin-prettier": "5.5.5",
     "eslint-plugin-react-hooks": "7.0.1",
     "eslint-plugin-react-refresh": "0.5.0",
     "eslint-plugin-storybook": "10.2.5",
diff --git a/src/components/LogsContent.tsx b/src/components/LogsContent.tsx
index 9a14abfb..c523695a 100644
--- a/src/components/LogsContent.tsx
+++ b/src/components/LogsContent.tsx
@@ -91,7 +91,12 @@ function LogViewer({ value, refresh }: LogViewerProps) {
             <DownloadIcon className="group/download" />
             {t('global.download')}
           </Button>
-          <Button variant="outline" onClick={handleRefresh} disabled={isLoadingRefresh} title={t('global.refresh')}>
+          <Button
+            variant="outline"
+            onClick={() => void handleRefresh()}
+            disabled={isLoadingRefresh}
+            title={t('global.refresh')}
+          >
             <RefreshCwIcon
               className={cn({
                 'animate-spin': isLoadingRefresh,
@@ -161,11 +166,13 @@ export const LogsContent = ({ enabled, className }: LogsContentProps) => {
           setAlert(undefined)
           setLogFileContent(data)
         })
-        .catch((error) => {
+        .catch((error: unknown) => {
           if (signal.aborted) return
 
+          const reason = (error instanceof Error ? error.message : undefined) || t('global.errors.reason_unknown')
           const errorMessage = t('logs.error_loading_logs_failed', {
-            reason: error.message || t('global.errors.reason_unknown'),
+            /* TODO: add reason to i18n string */
+            reason,
           })
 
           if (isDevMode()) {
@@ -183,7 +190,7 @@ export const LogsContent = ({ enabled, className }: LogsContentProps) => {
 
   if (enabled && !isInitialized) {
     const abortCtrl = new AbortController()
-    refresh(abortCtrl.signal).finally(() => {
+    void refresh(abortCtrl.signal).finally(() => {
       if (abortCtrl.signal.aborted) return
       setIsInitialized(true)
     })
diff --git a/src/components/LogsPage.tsx b/src/components/LogsPage.tsx
index 36e6945b..1e59bf80 100644
--- a/src/components/LogsPage.tsx
+++ b/src/components/LogsPage.tsx
@@ -95,7 +95,12 @@ function LogContent({ value, refresh }: LogContentProps) {
             <DownloadIcon className="group/download" />
             {t('global.download')}
           </Button>
-          <Button variant="outline" onClick={handleRefresh} disabled={isLoadingRefresh} title={t('global.refresh')}>
+          <Button
+            variant="outline"
+            onClick={() => void handleRefresh()}
+            disabled={isLoadingRefresh}
+            title={t('global.refresh')}
+          >
             <RefreshCwIcon className={cn({ 'animate-spin': isLoadingRefresh })} />
             {t('global.refresh')}
           </Button>
@@ -159,9 +164,10 @@ export const LogsPage = () => {
         .catch((error) => {
           if (signal.aborted) return
 
+          const reason = (error instanceof Error ? error.message : undefined) || t('global.errors.reason_unknown')
           const errorMessage = t('logs.error_loading_logs_failed', {
             /* TODO: add reason to i18n string */
-            reason: error.message || t('global.errors.reason_unknown'),
+            reason,
           })
 
           if (isDevMode()) {
@@ -181,7 +187,7 @@ export const LogsPage = () => {
 
   if (!isInitialized) {
     const abortCtrl = new AbortController()
-    refresh(abortCtrl.signal).finally(() => {
+    void refresh(abortCtrl.signal).finally(() => {
       if (abortCtrl.signal.aborted) return
       setIsInitialized(true)
     })
diff --git a/src/components/MainWalletPage.tsx b/src/components/MainWalletPage.tsx
index 76b61d4e..2a710747 100644
--- a/src/components/MainWalletPage.tsx
+++ b/src/components/MainWalletPage.tsx
@@ -93,7 +93,7 @@ export default function MainWalletPage({ walletFileName }: MainWalletPageProps)
               {t('global.errors.error_loading_wallet_failed', {
                 reason: error.message || t('global.errors.reason_unknown'),
               })}
-              <Button variant="outline" size="sm" onClick={() => refetchWalletData()}>
+              <Button variant="outline" size="sm" onClick={() => void refetchWalletData()}>
                 <RefreshCwIcon className={cn({ 'motion-safe:animate-spin': isFetching })} />
                 {t('global.retry')}
               </Button>
@@ -145,7 +145,7 @@ export default function MainWalletPage({ walletFileName }: MainWalletPageProps)
           </div>
         </div>
         <div className="flex w-full max-w-xl justify-end">
-          <Button variant="ghost" size="xs" onClick={() => refetchWalletData()}>
+          <Button variant="ghost" size="xs" onClick={() => void refetchWalletData()}>
             <RefreshCwIcon className={cn({ 'motion-safe:animate-spin': isFetching })} />
             {t('global.refresh')}
           </Button>
diff --git a/src/components/SwitchWalletPage.tsx b/src/components/SwitchWalletPage.tsx
index b3fb6984..93fe1f9c 100644
--- a/src/components/SwitchWalletPage.tsx
+++ b/src/components/SwitchWalletPage.tsx
@@ -186,7 +186,7 @@ const SwitchWalletPage = ({ walletFileName }: SwitchWalletPageProps) => {
                               <Button
                                 variant="default"
                                 size="sm"
-                                onClick={handleLockCurrentWallet}
+                                onClick={() => void handleLockCurrentWallet()}
                                 disabled={lockCurrentWallet.isFetching || currentWalletLocked}
                                 className="flex-1"
                               >
diff --git a/src/components/create/CreateWalletPage.tsx b/src/components/create/CreateWalletPage.tsx
index b845fdbc..733455ea 100644
--- a/src/components/create/CreateWalletPage.tsx
+++ b/src/components/create/CreateWalletPage.tsx
@@ -81,19 +81,16 @@ const CreateWalletPage = () => {
       }
 
       const walletFileName = walletDisplayNameToFileName(walletName)
-      const { data: createData, error: createError } = await createwallet({
+      const { data: createData } = await createwallet({
         client,
         body: {
           walletname: walletFileName,
           password,
           wallettype: 'sw-fb',
         },
+        throwOnError: true,
       })
 
-      if (createError) {
-        throw createError
-      }
-
       let hashedPassword: string | undefined = undefined
       try {
         hashedPassword = await hashPassword(password, createData.walletname)
diff --git a/src/components/dev/DevPage.tsx b/src/components/dev/DevPage.tsx
index cd92cda7..2b36ac9f 100644
--- a/src/components/dev/DevPage.tsx
+++ b/src/components/dev/DevPage.tsx
@@ -75,7 +75,7 @@ function DevConfigTabContent({ walletFileName }: DevConfigTabContentProps) {
             <code className="light:text-red-700 text-red-800">feeConfig.maxFeesConfigMissing:</code>
             <pre className="text-xs">{JSON.stringify(feeConfig.maxFeesConfigMissing, null, 2)}</pre>
           </div>
-          <Button onClick={() => feeConfig.refetchAll()}>feeConfig.refetchAll()</Button>
+          <Button onClick={() => void feeConfig.refetchAll()}>feeConfig.refetchAll()</Button>
 
           <FeeConfigTestComponent walletFileName={walletFileName} />
         </div>
diff --git a/src/components/earn/CreateFidelityBondDialog/CreateFidelityBondDialog.tsx b/src/components/earn/CreateFidelityBondDialog/CreateFidelityBondDialog.tsx
index 95277723..263134c7 100644
--- a/src/components/earn/CreateFidelityBondDialog/CreateFidelityBondDialog.tsx
+++ b/src/components/earn/CreateFidelityBondDialog/CreateFidelityBondDialog.tsx
@@ -45,7 +45,7 @@ export function CreateFidelityBondDialog({ open, onOpenChange, walletFileName }:
             <Button
               variant="outline"
               className="min-w-32"
-              onClick={handleUnfreezeUtxos}
+              onClick={() => void handleUnfreezeUtxos()}
               disabled={unfreezeUtxo.isPending}
             >
               {unfreezeUtxo.isPending ? (
@@ -78,7 +78,7 @@ export function CreateFidelityBondDialog({ open, onOpenChange, walletFileName }:
         <Button variant="outline" className="min-w-24" onClick={() => handleOpenChange(false)} disabled={isLoading}>
           {t('earn.fidelity_bond.select_date.text_secondary_button')}
         </Button>
-        <Button className="min-w-32" onClick={handleNext} disabled={!canProceed() || isLoading}>
+        <Button className="min-w-32" onClick={() => void handleNext()} disabled={!canProceed() || isLoading}>
           {isLoading && <Spinner className="mr-2 h-4 w-4" />}
           {step === 'freeze_utxos'
             ? utxosToFreeze.length > 0
diff --git a/src/components/earn/CreateFidelityBondDialog/CreateFidelityBondDialogSteps.tsx b/src/components/earn/CreateFidelityBondDialog/CreateFidelityBondDialogSteps.tsx
index 56ba53c5..d6e1259d 100644
--- a/src/components/earn/CreateFidelityBondDialog/CreateFidelityBondDialogSteps.tsx
+++ b/src/components/earn/CreateFidelityBondDialog/CreateFidelityBondDialogSteps.tsx
@@ -87,7 +87,7 @@ export function CreateFidelityBondDialogSteps({ wizard }: CreateFidelityBondDial
               <Select
                 value={selectedMonth}
                 onValueChange={(month) => {
-                  const year = selectedYear || String(parseInt(month, 10) >= minMonth ? minYear : minYear + 1)
+                  const year = selectedYear || String(Number.parseInt(month, 10) >= minMonth ? minYear : minYear + 1)
                   const newLockdate = clampLockdate(`${year}-${month}`)
                   setSelectedLockdate(newLockdate)
                 }}
diff --git a/src/components/earn/CreateFidelityBondDialog/types.ts b/src/components/earn/CreateFidelityBondDialog/types.ts
index 78960594..3fd6332d 100644
--- a/src/components/earn/CreateFidelityBondDialog/types.ts
+++ b/src/components/earn/CreateFidelityBondDialog/types.ts
@@ -36,8 +36,8 @@ export function generateLockdateOptions(isDeveloperMode: boolean): { value: fb.L
 
 export function getYearOptions(lockdateOptions: { value: fb.Lockdate }[]) {
   if (lockdateOptions.length === 0) return []
-  const minYear = parseInt(lockdateOptions[0].value.slice(0, 4), 10)
-  const maxYear = parseInt(lockdateOptions[lockdateOptions.length - 1].value.slice(0, 4), 10)
+  const minYear = Number.parseInt(lockdateOptions[0].value.slice(0, 4), 10)
+  const maxYear = Number.parseInt(lockdateOptions.at(-1)!.value.slice(0, 4), 10)
   return Array.from({ length: maxYear - minYear + 1 }, (_, i) => ({
     value: String(minYear + i),
     label: String(minYear + i),
diff --git a/src/components/earn/CreateFidelityBondDialog/useCreateFidelityBondWizard.ts b/src/components/earn/CreateFidelityBondDialog/useCreateFidelityBondWizard.ts
index 2409f63f..ef6351f0 100644
--- a/src/components/earn/CreateFidelityBondDialog/useCreateFidelityBondWizard.ts
+++ b/src/components/earn/CreateFidelityBondDialog/useCreateFidelityBondWizard.ts
@@ -42,8 +42,8 @@ export function useCreateFidelityBondWizard(
   const yearOptions = useMemo(() => getYearOptions(lockdateOptions), [lockdateOptions])
   const monthOptions = useMemo(() => getMonthOptions(), [])
 
-  const minLockdate = lockdateOptions[0]?.value ?? ''
-  const maxLockdate = lockdateOptions[lockdateOptions.length - 1]?.value ?? ''
+  const minLockdate = lockdateOptions.at(0)?.value ?? ''
+  const maxLockdate = lockdateOptions.at(-1)?.value ?? ''
   const clampLockdate = (lockdate: string): fb.Lockdate | '' => {
     if (!lockdate || lockdate < minLockdate) return minLockdate || ''
     if (lockdate > maxLockdate) return maxLockdate || ''
@@ -51,8 +51,8 @@ export function useCreateFidelityBondWizard(
   }
   const selectedYear = selectedLockdate ? selectedLockdate.slice(0, 4) : ''
   const selectedMonth = selectedLockdate ? selectedLockdate.slice(5, 7) : ''
-  const minYear = minLockdate ? parseInt(minLockdate.slice(0, 4), 10) : 0
-  const minMonth = minLockdate ? parseInt(minLockdate.slice(5, 7), 10) : 1
+  const minYear = minLockdate ? Number.parseInt(minLockdate.slice(0, 4), 10) : 0
+  const minMonth = minLockdate ? Number.parseInt(minLockdate.slice(5, 7), 10) : 1
 
   const existingFbLockdates = useMemo(() => {
     return walletInfo.fidelityBondSummary.fbOutputs
@@ -75,17 +75,17 @@ export function useCreateFidelityBondWizard(
 
   const availableUtxos = useMemo(() => {
     if (selectedJarIndex === undefined) return []
-    const jar = walletInfo.jars.find((j) => j.jarIndex === selectedJarIndex)
+    const jar = walletInfo.jars.find((it) => it.jarIndex === selectedJarIndex)
     if (!jar) return []
     return jar.utxos.filter((utxo) => !utxo.frozen && !fb.utxo.isFidelityBond(utxo))
   }, [walletInfo.jars, selectedJarIndex])
 
   const utxosToFreeze = useMemo(() => {
     if (selectedJarIndex === undefined) return []
-    const jar = walletInfo.jars.find((j) => j.jarIndex === selectedJarIndex)
+    const jar = walletInfo.jars.find((it) => it.jarIndex === selectedJarIndex)
     if (!jar) return []
     return jar.utxos.filter(
-      (utxo) => !utxo.frozen && !fb.utxo.isFidelityBond(utxo) && !selectedUtxos.some((s) => s.utxo === utxo.utxo),
+      (utxo) => !utxo.frozen && !fb.utxo.isFidelityBond(utxo) && !selectedUtxos.some((it) => it.utxo === utxo.utxo),
     )
   }, [walletInfo.jars, selectedJarIndex, selectedUtxos])
 
@@ -115,27 +115,24 @@ export function useCreateFidelityBondWizard(
 
   const freezeUtxo = useMutation({
     ...freezeMutation({ client }),
-    onError: (err: ErrorMessage) => {
-      console.error('Freeze error:', err)
-      const reason = err.message || err.error_description || t('global.errors.reason_unknown')
+    onError: (error: ErrorMessage) => {
+      const reason = error.message || error.error_description || t('global.errors.reason_unknown')
       setError(`${t('earn.fidelity_bond.error_freezing_utxos')} ${reason}`)
     },
   })
 
   const unfreezeUtxo = useMutation({
     ...freezeMutation({ client }),
-    onError: (err: ErrorMessage) => {
-      console.error('Unfreeze error:', err)
-      const reason = err.message || err.error_description || t('global.errors.reason_unknown')
+    onError: (error: ErrorMessage) => {
+      const reason = error.message || error.error_description || t('global.errors.reason_unknown')
       setError(`${t('earn.fidelity_bond.error_unfreezing_utxos')} ${reason}`)
     },
   })
 
   const directSend = useMutation({
     ...directsendMutation({ client }),
-    onError: (err: ErrorMessage) => {
-      console.error('DirectSend error:', err)
-      const reason = err.message || err.error_description || t('global.errors.reason_unknown')
+    onError: (error: ErrorMessage) => {
+      const reason = error.message || error.error_description || t('global.errors.reason_unknown')
       setError(`${t('earn.fidelity_bond.error_creating_fidelity_bond')} ${reason}`)
     },
   })
@@ -243,7 +240,7 @@ export function useCreateFidelityBondWizard(
       setTxResult(result)
       setStep('success')
       toast.success(t('earn.fidelity_bond.create_fidelity_bond.success_text'))
-      walletInfo.refetch()
+      await walletInfo.refetch()
     } catch {
       setStep('review')
     }
@@ -259,19 +256,19 @@ export function useCreateFidelityBondWizard(
       }
       setFrozenUtxos([])
       toast.success(t('earn.fidelity_bond.unfreeze_utxos.done'))
-      walletInfo.refetch()
+      await walletInfo.refetch()
     } catch {
       // Error handled in onError
     }
   }
 
   const toggleUtxoSelection = (utxo: Utxo) => {
-    setSelectedUtxos((prev) => {
-      const isSelected = prev.some((u) => u.utxo === utxo.utxo)
+    setSelectedUtxos((current) => {
+      const isSelected = current.some((u) => u.utxo === utxo.utxo)
       if (isSelected) {
-        return prev.filter((u) => u.utxo !== utxo.utxo)
+        return current.filter((u) => u.utxo !== utxo.utxo)
       }
-      return [...prev, utxo]
+      return [...current, utxo]
     })
   }
 
diff --git a/src/components/earn/EarnForm.tsx b/src/components/earn/EarnForm.tsx
index d9bb6554..46a86aeb 100644
--- a/src/components/earn/EarnForm.tsx
+++ b/src/components/earn/EarnForm.tsx
@@ -58,7 +58,7 @@ const baseSchema = yup
         then: (schema) => schema.min(JAM.OFFER_FEE_ABS_MIN).required(),
         otherwise: (schema) =>
           schema
-            .transform((value) => (Number.isNaN(value) ? null : value))
+            .transform((value) => (Number.isSafeInteger(value) ? Number(value) : null))
             .nullable()
             .optional(),
       }),
@@ -68,7 +68,7 @@ const baseSchema = yup
         schema.min(factorToPercentage(JAM.OFFER_FEE_REL_MIN)).max(factorToPercentage(JAM.OFFER_FEE_REL_MAX)).required(),
       otherwise: (schema) =>
         schema
-          .transform((value) => (Number.isNaN(value) ? null : value))
+          .transform((value) => (Number.isFinite(value) ? Number(value) : null))
           .nullable()
           .optional(),
     }),
diff --git a/src/components/earn/EarnPage.tsx b/src/components/earn/EarnPage.tsx
index dc785c2f..db30b7c1 100644
--- a/src/components/earn/EarnPage.tsx
+++ b/src/components/earn/EarnPage.tsx
@@ -211,7 +211,7 @@ export const EarnPage = ({ walletFileName }: EarnPageProps) => {
           value={jmSession.offer_list[0]}
           nickname={jmSession.nickname}
         >
-          <Button type="button" onClick={() => onStop()} className="w-full" size="lg">
+          <Button type="button" onClick={() => void onStop()} className="w-full" size="lg">
             {isWaitingMakerStop ? (
               <>
                 <Spinner className="motion-reduce:hidden" />
diff --git a/src/components/error/ErrorPage.tsx b/src/components/error/ErrorPage.tsx
index abb139d0..520a638b 100644
--- a/src/components/error/ErrorPage.tsx
+++ b/src/components/error/ErrorPage.tsx
@@ -58,8 +58,8 @@ function UnknownError({ error }: { error: unknown }) {
     return <ErrorView title={title} subtitle={subtitle} reason={t('global.errors.reason_unknown')} />
   }
 
-  const reason = 'message' in error && error.message ? String(error.message) : undefined
-  const stacktrace = 'stack' in error && error.stack ? String(error.stack) : undefined
+  const reason = 'message' in error && typeof error.message === 'string' ? error.message : undefined
+  const stacktrace = 'stack' in error && typeof error.stack === 'string' ? error.stack : undefined
   return (
     <ErrorView
       title={title}
diff --git a/src/components/orderbook/OrderbookContent.tsx b/src/components/orderbook/OrderbookContent.tsx
index 95fcff8d..8d495416 100644
--- a/src/components/orderbook/OrderbookContent.tsx
+++ b/src/components/orderbook/OrderbookContent.tsx
@@ -210,7 +210,7 @@ export const OrderbookContent = ({ enabled, className }: OrderbookContentProps)
             </AlertDescription>
           </Alert>
 
-          <Button variant="ghost" onClick={() => refetchOrderbookData()} disabled={isFetching}>
+          <Button variant="ghost" onClick={() => void refetchOrderbookData()} disabled={isFetching}>
             <RefreshCwIcon className={cn({ 'motion-safe:animate-spin': isFetching })} />
             {t('global.retry')}
           </Button>
@@ -246,7 +246,13 @@ export const OrderbookContent = ({ enabled, className }: OrderbookContentProps)
           )}
 
           <ButtonGroup>
-            <Button variant="outline" className="rounded-r-none" size="sm" onClick={handleReload} disabled={isFetching}>
+            <Button
+              variant="outline"
+              className="rounded-r-none"
+              size="sm"
+              onClick={() => void handleReload()}
+              disabled={isFetching}
+            >
               <RefreshCwIcon className={cn({ 'motion-safe:animate-spin': isFetching })} />
               {t('orderbook.button_reload_title')}
             </Button>
@@ -259,7 +265,7 @@ export const OrderbookContent = ({ enabled, className }: OrderbookContentProps)
               </DropdownMenuTrigger>
               <DropdownMenuContent align="end" className="min-w-52">
                 <DropdownMenuGroup>
-                  <DropdownMenuItem onClick={handleClearAndReload} disabled={isFetching}>
+                  <DropdownMenuItem onClick={() => void handleClearAndReload()} disabled={isFetching}>
                     {t('orderbook.button_refresh_text')}
                   </DropdownMenuItem>
                 </DropdownMenuGroup>
diff --git a/src/components/orderbook/OrderbookTable.tsx b/src/components/orderbook/OrderbookTable.tsx
index 0d5e4626..1fc4d120 100644
--- a/src/components/orderbook/OrderbookTable.tsx
+++ b/src/components/orderbook/OrderbookTable.tsx
@@ -70,6 +70,7 @@ type OrderTableColumnMeta =
   | undefined
 
 const fuzzyFilter: FilterFn<OrderTableEntry> = (row, columnId, value, addMeta) => {
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-argument -- tanstack/table api
   const itemRank = rankItem(row.getValue(columnId), value)
   addMeta({ itemRank })
   return itemRank.passed
@@ -121,7 +122,7 @@ export const OrderbookTable = ({
           numeric: true,
         } as OrderTableColumnMeta,
       }),
-      columnHelper.accessor('type', {
+      columnHelper.accessor<'type', OrderTableEntry['type']>('type', {
         header: () => <div className="flex items-center">{t('orderbook.table.heading_type')}</div>,
         sortingFn: (a, b) => a.original.type.displayValue.localeCompare(b.original.type.displayValue),
         cell: (info) => (
@@ -161,7 +162,7 @@ export const OrderbookTable = ({
           numeric: true,
         } as OrderTableColumnMeta,
       }),
-      columnHelper.accessor('minimumSize', {
+      columnHelper.accessor<'minimumSize', OrderTableEntry['minimumSize']>('minimumSize', {
         header: () => <div className="flex items-center">{t('orderbook.table.heading_minimum_size')}</div>,
         sortingFn: (a, b) => Number(a.original.minimumSize) - Number(b.original.minimumSize),
         cell: (info) => <Balance colored={false} valueString={info.getValue()} />,
@@ -170,7 +171,7 @@ export const OrderbookTable = ({
           numeric: true,
         } as OrderTableColumnMeta,
       }),
-      columnHelper.accessor('maximumSize', {
+      columnHelper.accessor<'maximumSize', OrderTableEntry['maximumSize']>('maximumSize', {
         header: () => <div className="flex items-center">{t('orderbook.table.heading_maximum_size')}</div>,
         sortingFn: (a, b) => Number(a.original.maximumSize) - Number(b.original.maximumSize),
         cell: (info) => <Balance colored={false} valueString={info.getValue()} />,
@@ -179,7 +180,7 @@ export const OrderbookTable = ({
           numeric: true,
         } as OrderTableColumnMeta,
       }),
-      columnHelper.accessor('minerFeeContribution', {
+      columnHelper.accessor<'minerFeeContribution', OrderTableEntry['minerFeeContribution']>('minerFeeContribution', {
         header: () => <div className="flex items-center">{t('orderbook.table.heading_miner_fee_contribution')}</div>,
         sortingFn: (a, b) => Number(a.original.minerFeeContribution) - Number(b.original.minerFeeContribution),
         cell: (info) => <Balance colored={false} valueString={info.getValue()} />,
diff --git a/src/components/receive/ReceiveForm.tsx b/src/components/receive/ReceiveForm.tsx
index 90017883..4ecf3e8e 100644
--- a/src/components/receive/ReceiveForm.tsx
+++ b/src/components/receive/ReceiveForm.tsx
@@ -44,7 +44,7 @@ const receiveFormSchema = (jars: Jar[]) => {
             .integer()
             .min(1)
             .max(21_000_000 * 100_000_000)
-            .transform((value) => (Number.isNaN(value) ? undefined : value))
+            .transform((value) => (Number.isSafeInteger(value) ? Number(value) : null))
             .nullable()
             .optional(),
         })
@@ -83,8 +83,10 @@ export const ReceiveForm = ({ className, defaultValues, onSubmit, jars, disabled
 
   const values = useWatch({ control })
 
+  const doOnChange = handleSubmit(onSubmit)
+
   return (
-    <form onChange={handleSubmit(onSubmit)} className={cn('flex flex-col gap-4', className)} noValidate>
+    <form onChange={(event) => void doOnChange(event)} className={cn('flex flex-col gap-4', className)} noValidate>
       <div className="space-y-2">
         <Field className="space-y-4" data-invalid={errors.source !== undefined}>
           <FieldLabel>{t('receive.label_source_jar')}</FieldLabel>
diff --git a/src/components/receive/ReceivePage.tsx b/src/components/receive/ReceivePage.tsx
index 6c19f8e1..8a21420f 100644
--- a/src/components/receive/ReceivePage.tsx
+++ b/src/components/receive/ReceivePage.tsx
@@ -62,7 +62,7 @@ export const ReceivePage = ({ walletFileName }: ReceivePageProps) => {
   const getAddressQueryOptions = getaddressOptions({
     client,
     path: {
-      walletname: encodeURIComponent(walletFileName!),
+      walletname: encodeURIComponent(walletFileName),
       mixdepth: String(sourceJar?.jarIndex),
     },
   })
@@ -147,7 +147,12 @@ export const ReceivePage = ({ walletFileName }: ReceivePageProps) => {
           )}
 
           <div className="mt-4 flex items-center gap-2">
-            <Button variant="outline" size="sm" onClick={getNewAddress} disabled={getAddressQuery.isFetching}>
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => void getNewAddress()}
+              disabled={getAddressQuery.isFetching}
+            >
               {getAddressQuery.isFetching ? (
                 <>
                   <RefreshCwIcon className="animate-spin motion-reduce:hidden" />
diff --git a/src/components/send/JarSelectorDialog.tsx b/src/components/send/JarSelectorDialog.tsx
index f54a71fd..2f66d520 100644
--- a/src/components/send/JarSelectorDialog.tsx
+++ b/src/components/send/JarSelectorDialog.tsx
@@ -41,13 +41,16 @@ export default function JarSelectorDialog({
     onOpenChange(false)
   }
 
-  const confirm = () => {
+  const confirm = async () => {
     if (selectedJar === undefined) return
 
     setIsConfirming(true)
-    onConfirm(selectedJar.jarIndex)
-      .then(() => setSelectedJar(undefined))
-      .finally(() => setIsConfirming(false))
+    try {
+      await onConfirm(selectedJar.jarIndex)
+      setSelectedJar(undefined)
+    } finally {
+      setIsConfirming(false)
+    }
   }
 
   return (
@@ -79,7 +82,7 @@ export default function JarSelectorDialog({
           <Button className="flex-1" variant="outline" onClick={handleClose}>
             {t('modal.confirm_button_reject')}
           </Button>
-          <Button className="flex-1" onClick={confirm} disabled={!selectedJar || isConfirming}>
+          <Button className="flex-1" onClick={() => void confirm()} disabled={!selectedJar || isConfirming}>
             {isConfirming ? (
               <>
                 <Spinner className="motion-reduce:hidden" />
diff --git a/src/components/send/PaymentConfirmDialog.tsx b/src/components/send/PaymentConfirmDialog.tsx
index 68c884d0..ef63511e 100644
--- a/src/components/send/PaymentConfirmDialog.tsx
+++ b/src/components/send/PaymentConfirmDialog.tsx
@@ -98,9 +98,13 @@ export default function PaymentConfirmDialog({
     onOpenChange(false)
   }
 
-  const confirm = () => {
+  const confirm = async () => {
     setIsConfirming(true)
-    onConfirm(values).finally(() => setIsConfirming(false))
+    try {
+      await onConfirm(values)
+    } finally {
+      setIsConfirming(false)
+    }
   }
 
   return (
@@ -213,7 +217,7 @@ export default function PaymentConfirmDialog({
           <Button className="flex-1" variant="outline" onClick={handleClose}>
             {t('modal.confirm_button_reject')}
           </Button>
-          <Button className="flex-1" onClick={confirm} disabled={isConfirming}>
+          <Button className="flex-1" onClick={() => void confirm()} disabled={isConfirming}>
             {isConfirming ? (
               <>
                 <Spinner className="motion-reduce:hidden" />
diff --git a/src/components/settings/AccountXpubsDialog.tsx b/src/components/settings/AccountXpubsDialog.tsx
index 2b61ad30..6acdc68e 100644
--- a/src/components/settings/AccountXpubsDialog.tsx
+++ b/src/components/settings/AccountXpubsDialog.tsx
@@ -241,7 +241,7 @@ export const AccountXpubsDialog = ({
 
   useEffect(() => {
     if (open && isPasswordVerified && seedQuery.data === undefined) {
-      seedQuery.refetch()
+      void seedQuery.refetch()
     }
   }, [open, isPasswordVerified, seedQuery])
 
diff --git a/src/components/ui/jam/JarIcon.tsx b/src/components/ui/jam/JarIcon.tsx
index e3e553d5..fbea334e 100644
--- a/src/components/ui/jam/JarIcon.tsx
+++ b/src/components/ui/jam/JarIcon.tsx
@@ -30,9 +30,9 @@ const fillLevelToPercent = (fillLevel: JarFillLevel): number => {
 }
 
 interface JarIconProps {
-  color?: string
-  amount?: AmountSats
-  totalBalance?: number
+  color: string
+  amount: AmountSats
+  totalBalance: AmountSats
   width?: number
   height?: number
   isSelected?: boolean
diff --git a/src/components/wallet/BranchEntryTable.tsx b/src/components/wallet/BranchEntryTable.tsx
index ff80a129..f2248087 100644
--- a/src/components/wallet/BranchEntryTable.tsx
+++ b/src/components/wallet/BranchEntryTable.tsx
@@ -53,6 +53,7 @@ type BranchEntryTableColumnMeta =
   | undefined
 
 const fuzzyFilter: FilterFn<BranchEntryTableRow> = (row, columnId, value, addMeta) => {
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-argument -- tanstack/table api
   const itemRank = rankItem(row.getValue(columnId), value)
   addMeta({ itemRank })
   return itemRank.passed
diff --git a/src/components/wallet/JarUtxosTable.tsx b/src/components/wallet/JarUtxosTable.tsx
index faeca89f..dfef59af 100644
--- a/src/components/wallet/JarUtxosTable.tsx
+++ b/src/components/wallet/JarUtxosTable.tsx
@@ -53,6 +53,7 @@ type UtxoTableColumnMeta =
   | undefined
 
 const fuzzyFilter: FilterFn<UtxoTableEntry> = (row, columnId, value, addMeta) => {
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-argument -- tanstack/table api
   const itemRank = rankItem(row.getValue(columnId), value)
   addMeta({ itemRank })
   return itemRank.passed
diff --git a/src/lib/utils.test.ts b/src/lib/utils.test.ts
index cd2e94ff..59671c46 100644
--- a/src/lib/utils.test.ts
+++ b/src/lib/utils.test.ts
@@ -117,6 +117,7 @@ describe('setIntervalDebounced', () => {
     const callback = vi.fn().mockRejectedValueOnce(error).mockResolvedValueOnce(undefined)
     const onTimerIdChanged = vi.fn()
     const onError = vi.fn((_, loop) => {
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-call -- okay when using vi mocks
       loop()
     })
 
diff --git a/tsconfig.app.json b/tsconfig.app.json
index 8ba3ff5a..1bcbb34a 100644
--- a/tsconfig.app.json
+++ b/tsconfig.app.json
@@ -3,8 +3,8 @@
     "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
     "target": "es2023",
     "useDefineForClassFields": true,
-    "lib": ["es2023", "DOM", "DOM.Iterable"],
-    "module": "ESNext",
+    "lib": ["ES2023", "DOM", "DOM.Iterable"],
+    "module": "esnext",
     "skipLibCheck": true,
     "baseUrl": ".",
     "paths": {
diff --git a/tsconfig.node.json b/tsconfig.node.json
index 9728af2d..75125f24 100644
--- a/tsconfig.node.json
+++ b/tsconfig.node.json
@@ -1,9 +1,9 @@
 {
   "compilerOptions": {
     "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
-    "target": "ES2022",
+    "target": "es2023",
     "lib": ["ES2023"],
-    "module": "ESNext",
+    "module": "esnext",
     "skipLibCheck": true,
 
     /* Bundler mode */