diff --git a/package-lock.json b/package-lock.json
index 31e7aec..4086f3d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,15 +1,17 @@
 {
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+  "version": "1.3.2",
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   "requires": true,
   "packages": {
     "": {
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-      "version": "1.3.0",
+      "version": "1.3.2",
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+      "resolved": "https://registry.npmjs.org/@ts-morph/common/-/common-0.26.1.tgz",
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-        "minimatch": "^5.0.1",
-        "mkdirp": "^1.0.4",
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-      "optional": true,
-      "bin": {
-        "mkdirp": "bin/cmd.js"
+        "node": ">=16 || 14 >=14.17"
       },
-      "engines": {
-        "node": ">=10"
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
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+        "fill-range": "^7.1.1"
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+      "resolved": "https://registry.npmjs.org/code-block-writer/-/code-block-writer-13.0.3.tgz",
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+      "license": "MIT"
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@@ -4355,6 +4338,49 @@
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+      "resolved": "https://registry.npmjs.org/@ts-morph/common/-/common-0.13.0.tgz",
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@@ -4367,11 +4393,37 @@
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+      "optional": true,
+      "bin": {
+        "prettier": "bin-prettier.js"
+      },
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+        "prettier": "bin/prettier.cjs"
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@@ -5541,13 +5590,13 @@
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       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
-      "devOptional": true,
       "requires": {
         "is-number": "^7.0.0"
       }
@@ -10100,13 +10169,12 @@
       "dev": true
     },
     "ts-morph": {
-      "version": "14.0.0",
-      "resolved": "https://registry.npmjs.org/ts-morph/-/ts-morph-14.0.0.tgz",
-      "integrity": "sha512-tO8YQ1dP41fw8GVmeQAdNsD8roZi1JMqB7YwZrqU856DvmG5/710e41q2XauzTYrygH9XmMryaFeLo+kdCziyA==",
-      "optional": true,
+      "version": "25.0.1",
+      "resolved": "https://registry.npmjs.org/ts-morph/-/ts-morph-25.0.1.tgz",
+      "integrity": "sha512-QJEiTdnz1YjrB3JFhd626gX4rKHDLSjSVMvGGG4v7ONc3RBwa0Eei98G9AT9uNFDMtV54JyuXsFeC+OH0n6bXQ==",
       "requires": {
-        "@ts-morph/common": "~0.13.0",
-        "code-block-writer": "^11.0.0"
+        "@ts-morph/common": "~0.26.0",
+        "code-block-writer": "^13.0.3"
       }
     },
     "tslib": {
diff --git a/package.json b/package.json
index 9de8025..daf4e44 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,8 @@
   "license": "ISC",
   "dependencies": {
     "pg-schema-dump": "^2.0.1",
+    "prettier": "^3.5.1",
+    "ts-morph": "^25.0.1",
     "yargs": "^17.7.2"
   },
   "peerDependencies": {
diff --git a/src/generate.ts b/src/generate.ts
index 3996655..20e488c 100644
--- a/src/generate.ts
+++ b/src/generate.ts
@@ -2,6 +2,7 @@ import { getConnectionStringFromEnv } from "pg-connection-from-env"
 import { Context } from "./get-project-context"
 import { generateSchema } from "./lib/generate-schema"
 import { generateStructure } from "./lib/generate-structure"
+import { generateTypes } from "./lib/generate-types"
 import { generateGetDbClient } from "./lib/generate-get-db-client"
 
 export const generate = async (
@@ -21,6 +22,11 @@ export const generate = async (
     schemas,
   })
 
+  await generateTypes({
+    zapatos_dir: `${zapatosDir ?? dbDir}/zapatos`,
+    output_dir: `${dbDir}/types`,
+  })
+
   await generateStructure({
     database_name: defaultDatabase,
     output_dir: dbDir,
diff --git a/src/lib/generate-types/file-generators/custom/[schema_name]/[TableName]CustomTypes.ts b/src/lib/generate-types/file-generators/custom/[schema_name]/[TableName]CustomTypes.ts
new file mode 100644
index 0000000..79da8b6
--- /dev/null
+++ b/src/lib/generate-types/file-generators/custom/[schema_name]/[TableName]CustomTypes.ts
@@ -0,0 +1,60 @@
+import type { Config, Schema, Table } from "../../../types"
+import { pascalCase } from "../../../utils"
+import {
+  StructureKind,
+  type Project,
+  type SourceFile,
+  type StatementedNodeStructure,
+} from "ts-morph"
+
+export const createCustomTypesFile = (
+  args: {
+    project: Project
+    schema: Schema
+    table: Table
+  },
+  config: Config
+): SourceFile => {
+  const { project, schema, table } = args
+  const { output_dir } = config
+
+  const pascal_table_name = pascalCase(table.name)
+
+  const statements: StatementedNodeStructure["statements"] = [
+    {
+      kind: StructureKind.ImportDeclaration,
+      namedImports: ["SubsetOf"],
+      moduleSpecifier: "../../generated/utils",
+      isTypeOnly: true,
+    },
+    {
+      kind: StructureKind.ImportDeclaration,
+      namedImports: [`Selectable${pascal_table_name}`],
+      moduleSpecifier: `../../generated/${schema.name}/${pascal_table_name}QueryTypes`,
+      isTypeOnly: true,
+    },
+    (writer) => writer.blankLine(),
+    {
+      kind: StructureKind.TypeAlias,
+      name: `${pascal_table_name}CustomTypes`,
+      type: `SubsetOf<Selectable${pascal_table_name}, {}>`,
+      isExported: true,
+    },
+    (writer) => writer.blankLine(),
+    {
+      kind: StructureKind.ExportAssignment,
+      isExportEquals: false,
+      expression: `${pascal_table_name}CustomTypes`,
+    },
+  ]
+
+  return project.createSourceFile(
+    `${output_dir}/custom/${schema.name}/${pascal_table_name}CustomTypes.ts`,
+    {
+      statements,
+    },
+    {
+      overwrite: false,
+    }
+  )
+}
diff --git a/src/lib/generate-types/file-generators/generated/[schema_name]/[TableName].ts b/src/lib/generate-types/file-generators/generated/[schema_name]/[TableName].ts
new file mode 100644
index 0000000..2c26186
--- /dev/null
+++ b/src/lib/generate-types/file-generators/generated/[schema_name]/[TableName].ts
@@ -0,0 +1,95 @@
+import type { Config, Schema, Table } from "../../../types"
+import { pascalCase } from "../../../utils"
+import {
+  StructureKind,
+  type Project,
+  type SourceFile,
+  type StatementedNodeStructure,
+} from "ts-morph"
+
+export const createResultingTypeFile = (
+  args: {
+    project: Project
+    schema: Schema
+    table: Table
+  },
+  config: Config
+): SourceFile => {
+  const { project, schema, table } = args
+  const { output_dir } = config
+
+  const pascal_table_name = pascalCase(table.name)
+
+  const statements: StatementedNodeStructure["statements"] = [
+    {
+      kind: StructureKind.ImportDeclaration,
+      moduleSpecifier: `./${pascal_table_name}QueryTypes`,
+      namedImports: [
+        `Selectable${pascal_table_name}`,
+        `Insertable${pascal_table_name}`,
+      ],
+      isTypeOnly: true,
+    },
+  ]
+
+  if (table.is_affected_by_pgtui_bugs) {
+    statements.push({
+      kind: StructureKind.ImportDeclaration,
+      moduleSpecifier: "../utils",
+      namedImports: ["ReproducePgtuiBugs"],
+      isTypeOnly: true,
+    })
+  }
+
+  if (table.is_customizable) {
+    statements.push(
+      {
+        kind: StructureKind.ImportDeclaration,
+        moduleSpecifier: "../utils",
+        namedImports: ["CustomizeDbType", "CustomizeDbTypeInitializer"],
+        isTypeOnly: true,
+      },
+      {
+        kind: StructureKind.ImportDeclaration,
+        moduleSpecifier: `../../custom/${schema.name}/${pascal_table_name}CustomTypes`,
+        defaultImport: `${pascal_table_name}CustomTypes`,
+        isTypeOnly: true,
+      }
+    )
+  }
+
+  statements.push(
+    (writer) => writer.newLine(),
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: pascal_table_name,
+      type: table.is_customizable
+        ? `CustomizeDbType<Selectable${pascal_table_name}, ${pascal_table_name}CustomTypes>`
+        : `Selectable${pascal_table_name}`,
+    },
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: `${pascal_table_name}Initializer`,
+      type: table.is_customizable
+        ? `CustomizeDbTypeInitializer<Insertable${pascal_table_name}, ${pascal_table_name}CustomTypes>`
+        : `Insertable${pascal_table_name}`,
+    }
+  )
+
+  if (table.is_affected_by_pgtui_bugs) {
+    statements.push({
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: `${pascal_table_name}WithPgtuiBugs`,
+      type: `ReproducePgtuiBugs<${pascal_table_name}>`,
+    })
+  }
+
+  return project.createSourceFile(
+    `${output_dir}/generated/${schema.name}/${pascal_table_name}.ts`,
+    { statements },
+    { overwrite: true }
+  )
+}
diff --git a/src/lib/generate-types/file-generators/generated/[schema_name]/[TableName]QueryTypes.ts b/src/lib/generate-types/file-generators/generated/[schema_name]/[TableName]QueryTypes.ts
new file mode 100644
index 0000000..9718c28
--- /dev/null
+++ b/src/lib/generate-types/file-generators/generated/[schema_name]/[TableName]QueryTypes.ts
@@ -0,0 +1,71 @@
+import type { Config, Schema, Table } from "../../../types"
+import { pascalCase } from "../../../utils"
+import {
+  type SourceFile,
+  StructureKind,
+  type Project,
+  type StatementedNodeStructure,
+} from "ts-morph"
+
+export const createQueryTypesFile = (
+  args: {
+    project: Project
+    schema: Schema
+    table: Table
+  },
+  config: Config
+): SourceFile => {
+  const { project, schema, table } = args
+  const { output_dir } = config
+
+  const base_type_name = pascalCase(table.name)
+
+  const statements: StatementedNodeStructure["statements"] = []
+
+  if (table.uses_zapatos_column_type) {
+    statements.push({
+      kind: StructureKind.ImportDeclaration,
+      moduleSpecifier: "zapatos/db",
+      namespaceImport: "db",
+      isTypeOnly: true,
+    })
+  }
+
+  statements.push(
+    (writer) => writer.newLine(),
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: `Selectable${base_type_name}`,
+      type: (writer) =>
+        writer.inlineBlock(() => {
+          for (const column of Object.values(table.selectable_columns)) {
+            writer.writeLine(
+              `${column.name}${column.is_optional ? "?" : ""}: ${column.type};`
+            )
+          }
+        }),
+    },
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: `Insertable${base_type_name}`,
+      type: (writer) =>
+        writer.inlineBlock(() => {
+          for (const column of Object.values(table.insertable_columns)) {
+            writer.writeLine(
+              `${column.name}${column.is_optional ? "?" : ""}: ${column.type};`
+            )
+          }
+        }),
+    }
+  )
+
+  return project.createSourceFile(
+    `${output_dir}/generated/${schema.name}/${base_type_name}QueryTypes.ts`,
+    {
+      statements,
+    },
+    { overwrite: true }
+  )
+}
diff --git a/src/lib/generate-types/file-generators/generated/[schema_name]/index.ts b/src/lib/generate-types/file-generators/generated/[schema_name]/index.ts
new file mode 100644
index 0000000..ad3a3f1
--- /dev/null
+++ b/src/lib/generate-types/file-generators/generated/[schema_name]/index.ts
@@ -0,0 +1,125 @@
+import type { Config, Schema } from "../../../types"
+import { pascalCase } from "../../../utils"
+import {
+  StructureKind,
+  type Project,
+  type SourceFile,
+  type StatementedNodeStructure,
+} from "ts-morph"
+
+export const createSchemaGeneratedTypeIndexFile = (
+  args: {
+    project: Project
+    schema: Schema
+  },
+  config: Config,
+): SourceFile => {
+  const { project, schema } = args
+  const { output_dir } = config
+
+  const pascale_schema_name = pascalCase(schema.name)
+
+  const tables = Object.values(schema.tables)
+  const pascal_table_names = tables
+    .map((table) => table.name)
+    .reduce<Record<string, string>>((acc, table_name) => {
+      acc[table_name] = pascalCase(table_name)
+      return acc
+    }, {})
+
+  const statements: StatementedNodeStructure["statements"] = [
+    {
+      kind: StructureKind.ImportDeclaration,
+      moduleSpecifier: "../utils",
+      namedImports: ["KyselyTable"],
+      isTypeOnly: true,
+    },
+  ]
+
+  for (const table of tables) {
+    statements.push({
+      kind: StructureKind.ImportDeclaration,
+      isTypeOnly: true,
+      moduleSpecifier: `./${pascal_table_names[table.name]}`,
+      namedImports: [
+        pascal_table_names[table.name],
+        ...(table.is_affected_by_pgtui_bugs
+          ? [`${pascal_table_names[table.name]}WithPgtuiBugs`]
+          : []),
+        `${pascal_table_names[table.name]}Initializer`,
+      ],
+    })
+  }
+
+  statements.push(
+    (writer) => writer.newLine(),
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: `${pascale_schema_name}Tables`,
+      type: `[ ${tables
+        .map((table) => `"${schema.name}.${table.name}"`)
+        .join(", ")} ]`,
+    },
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: `${pascale_schema_name}Table`,
+      type: `${pascale_schema_name}Tables[number]`,
+    },
+    (writer) => writer.newLine(),
+  )
+
+  if (config.generate_knex_types) {
+    statements.push({
+      kind: StructureKind.Interface,
+      isExported: true,
+      name: "KnexSchemaTypeMap",
+      properties: tables.map((table) => ({
+        name:
+          schema.name === "seam"
+            ? table.name
+            : `"${schema.name}.${table.name}"`,
+        type: table.is_affected_by_pgtui_bugs
+          ? `${pascal_table_names[table.name]}WithPgtuiBugs`
+          : pascal_table_names[table.name],
+      })),
+    })
+  }
+
+  statements.push(
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: "KyselySchemaTypeMap",
+      type: `{ ${tables
+        .map(
+          (table) =>
+            `"${schema.name}.${table.name}": KyselyTable<${
+              pascal_table_names[table.name]
+            }, ${pascal_table_names[table.name]}Initializer>;`,
+        )
+        .join(" ")} }`,
+    },
+    (writer) => writer.newLine(),
+    {
+      kind: StructureKind.ExportDeclaration,
+      isTypeOnly: true,
+      namedExports: tables.flatMap((table) => [
+        pascal_table_names[table.name],
+        ...(table.is_affected_by_pgtui_bugs
+          ? [`${pascal_table_names[table.name]}WithPgtuiBugs`]
+          : []),
+        `${pascal_table_names[table.name]}Initializer`,
+      ]),
+    },
+  )
+
+  return project.createSourceFile(
+    `${output_dir}/generated/${schema.name}/index.ts`,
+    {
+      statements,
+    },
+    { overwrite: true },
+  )
+}
diff --git a/src/lib/generate-types/file-generators/generated/index.ts b/src/lib/generate-types/file-generators/generated/index.ts
new file mode 100644
index 0000000..ff63d9d
--- /dev/null
+++ b/src/lib/generate-types/file-generators/generated/index.ts
@@ -0,0 +1,96 @@
+import { pascalCase } from "../../utils"
+import type { Config, Schema } from "../../types"
+import {
+  type Project,
+  type StatementedNodeStructure,
+  type SourceFile,
+  StructureKind,
+} from "ts-morph"
+
+export const createGeneratedIndexFile = (
+  args: {
+    project: Project
+    schemas: Schema[]
+  },
+  config: Config,
+): SourceFile => {
+  const { project, schemas } = args
+  const { output_dir, main_schema = "public" } = config
+
+  const schema_import_statements: StatementedNodeStructure["statements"] = []
+  const schema_export_statements: StatementedNodeStructure["statements"] = []
+  const schemas_tables: string[] = []
+
+  for (const schema of schemas) {
+    if (Object.values(schema.tables).length === 0) continue
+    const pascal_schema_name = pascalCase(schema.name)
+
+    schema_import_statements.push({
+      kind: StructureKind.ImportDeclaration,
+      moduleSpecifier: `./${schema.name}`,
+      namedImports: [`${pascal_schema_name}Tables`],
+    })
+    schemas_tables.push(`${pascal_schema_name}Tables`)
+    schema_export_statements.push({
+      kind: StructureKind.ExportDeclaration,
+      namespaceExport: schema.name === main_schema ? undefined : schema.name,
+      moduleSpecifier: `./${schema.name}`,
+    })
+  }
+
+  const statements: StatementedNodeStructure["statements"] = [
+    ...schema_import_statements,
+    (writer) => writer.newLine(),
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: "DatabaseSchemas",
+      type: `[ ${schemas.map((schema) => `"${schema.name}"`).join(", ")} ]`,
+    },
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: "DatabaseTables",
+      type: `[ ${schemas_tables
+        .map((schema_tables) => `...${schema_tables}`)
+        .join(", ")} ]`,
+    },
+    (writer) => writer.newLine(),
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: "DatabaseSchema",
+      type: "DatabaseSchemas[number]",
+    },
+    {
+      kind: StructureKind.TypeAlias,
+      isExported: true,
+      name: "DatabaseTable",
+      type: "DatabaseTables[number]",
+    },
+    (writer) => writer.newLine(),
+    ...schema_export_statements,
+    (writer) => writer.newLine(),
+    {
+      kind: StructureKind.ExportDeclaration,
+      namespaceExport: "kysely",
+      moduleSpecifier: "./kysely",
+    },
+  ]
+
+  if (config.generate_knex_types) {
+    statements.push({
+      kind: StructureKind.ExportDeclaration,
+      namespaceExport: "knex",
+      moduleSpecifier: "./knex",
+    })
+  }
+
+  return project.createSourceFile(
+    `${output_dir}/generated/index.ts`,
+    {
+      statements,
+    },
+    { overwrite: true },
+  )
+}
diff --git a/src/lib/generate-types/file-generators/generated/knex.ts b/src/lib/generate-types/file-generators/generated/knex.ts
new file mode 100644
index 0000000..3f40e3c
--- /dev/null
+++ b/src/lib/generate-types/file-generators/generated/knex.ts
@@ -0,0 +1,61 @@
+import type { Config, Schema } from "../../types"
+import { pascalCase } from "../../utils"
+import {
+  StructureKind,
+  type SourceFile,
+  type Project,
+  type StatementedNodeStructure,
+} from "ts-morph"
+
+export const createKnexIndexFile = (
+  args: {
+    project: Project
+    schemas: Schema[]
+  },
+  config: Config,
+): SourceFile => {
+  const { project, schemas } = args
+  const { output_dir } = config
+
+  const statements: StatementedNodeStructure["statements"] = []
+  const module_interface_statements: StatementedNodeStructure["statements"] = []
+
+  for (const schema of schemas) {
+    if (Object.values(schema.tables).length === 0) continue
+
+    statements.push({
+      kind: StructureKind.ImportDeclaration,
+      moduleSpecifier: `./${schema.name}`,
+      namedImports: [
+        {
+          name: "KnexSchemaTypeMap",
+          alias: `${pascalCase(schema.name)}TypeMap`,
+        },
+      ],
+    })
+
+    module_interface_statements.push({
+      kind: StructureKind.Interface,
+      name: "Tables",
+      extends: [`${pascalCase(schema.name)}TypeMap`],
+      properties: [],
+    })
+  }
+
+  // Create the module declaration
+  statements.push({
+    kind: StructureKind.Module,
+    name: `"knex/types/tables"`,
+    hasDeclareKeyword: true,
+    statements: module_interface_statements,
+  })
+
+  // Create the source file
+  return project.createSourceFile(
+    `${output_dir}/generated/knex.ts`,
+    {
+      statements,
+    },
+    { overwrite: true },
+  )
+}
diff --git a/src/lib/generate-types/file-generators/generated/kysely.ts b/src/lib/generate-types/file-generators/generated/kysely.ts
new file mode 100644
index 0000000..940ae36
--- /dev/null
+++ b/src/lib/generate-types/file-generators/generated/kysely.ts
@@ -0,0 +1,79 @@
+import type { Config, Schema } from "../../types"
+import { pascalCase } from "../../utils"
+import {
+  StructureKind,
+  type SourceFile,
+  type Project,
+  type StatementedNodeStructure,
+} from "ts-morph"
+
+export const createKyselyIndexFile = (
+  args: {
+    project: Project
+    schemas: Schema[]
+  },
+  config: Config
+): SourceFile => {
+  const { project, schemas } = args
+  const { output_dir } = config
+
+  const type_references: string[] = []
+
+  const statements: StatementedNodeStructure["statements"] = [
+    {
+      kind: StructureKind.ImportDeclaration,
+      moduleSpecifier: "kysely",
+      namedImports: ["Kysely", "Transaction"],
+      isTypeOnly: true,
+    },
+  ]
+
+  for (const schema of schemas) {
+    if (Object.values(schema.tables).length === 0) continue
+
+    statements.push({
+      kind: StructureKind.ImportDeclaration,
+      moduleSpecifier: `./${schema.name}`,
+      namedImports: [
+        {
+          name: "KyselySchemaTypeMap",
+          alias: `${pascalCase(schema.name)}TypeMap`,
+        },
+      ],
+      isTypeOnly: true,
+    })
+
+    type_references.push(`${pascalCase(schema.name)}TypeMap`)
+  }
+
+  statements.push(
+    (writer) => writer.newLine(),
+    {
+      kind: StructureKind.TypeAlias,
+      name: "KyselySchema",
+      isExported: true,
+      type: type_references.join(" & "),
+    },
+    (writer) => writer.newLine(),
+    {
+      kind: StructureKind.TypeAlias,
+      name: "KyselyDatabase",
+      isExported: true,
+      type: `Kysely<KyselySchema>`,
+    },
+    {
+      kind: StructureKind.TypeAlias,
+      name: "KyselyTransaction",
+      isExported: true,
+      type: `Transaction<KyselySchema>`,
+    }
+  )
+
+  return project.createSourceFile(
+    `${output_dir}/generated/kysely.ts`,
+    {
+      statements,
+    },
+    { overwrite: true }
+  )
+}
diff --git a/src/lib/generate-types/file-generators/generated/utils.ts b/src/lib/generate-types/file-generators/generated/utils.ts
new file mode 100644
index 0000000..36fd3cf
--- /dev/null
+++ b/src/lib/generate-types/file-generators/generated/utils.ts
@@ -0,0 +1,101 @@
+import { type Config } from "../../types"
+import { type Project, type SourceFile } from "ts-morph"
+
+export const createGeneratedUtilsFile = (
+  args: {
+    project: Project
+  },
+  config: Config,
+): SourceFile => {
+  const { project } = args
+  const { output_dir } = config
+
+  const file_source = `import type { JSONValue } from "zapatos/db"
+import { type ColumnType } from "kysely"
+
+type PartialWithNever<T> = {
+  [P in keyof T as T[P] extends never ? never : P]?: T[P]
+} & {
+  [P in keyof T as T[P] extends never ? P : never]: T[P]
+}
+
+export type KyselyTable<Selectable, Initializer> = {
+  [K in keyof Selectable]: ColumnType<
+    Selectable[K],
+    K extends keyof Initializer ? Initializer[K] : never,
+    K extends keyof PartialWithNever<Initializer>
+      ? PartialWithNever<Initializer>[K]
+      : never
+  >
+}
+
+type KeysOfUnion<T> = T extends T ? keyof T : never
+
+type NullableKeys<T> = {
+  [K in keyof T]: null extends T[K] ? K : never
+}[keyof T]
+
+/**
+ * Allows creating a type that is a subset of another type.
+ */
+export type SubsetOf<
+  Super,
+  Sub extends {
+    // The types of keys present in sub must be assignable to the types of the same keys in super
+    [K in keyof Super as K extends KeysOfUnion<Sub> ? K : never]: Super[K]
+  } & {
+    // Keys that are nullable in super must stay nullable in sub
+    [K in keyof Sub as K extends NullableKeys<Super>
+      ? K
+      : never]: null extends Sub[K] ? any : null
+  } & {
+    // Keys in sub must exist in super
+    [K in keyof Sub as K extends keyof Super ? never : K]: never
+  }
+> = Sub
+
+// Replaces the values of From with the values of To and ignores the rest of the properties of To
+type ReplaceValueTypes<From, To> = Omit<From, keyof To> &
+  Pick<To, Extract<keyof To, keyof From>>
+
+// Works to make From properties optional but it would not work to make them mandatory as From[K] would include undefined
+// TODO improve to keep unions (if possible)
+type ReplaceKeyTypes<From, To> = {
+  [K in keyof To as K extends keyof From ? K : never]: K extends keyof From
+    ? From[K]
+    : never
+} & {
+  [K in keyof From as K extends keyof To ? never : K]: From[K]
+}
+
+export type CustomizeDbType<DbType, CustomProperties> = ReplaceValueTypes<
+  DbType,
+  CustomProperties
+>
+
+export type CustomizeDbTypeInitializer<DbTypeInitializer, CustomProperties> =
+  ReplaceValueTypes<
+    DbTypeInitializer,
+    ReplaceKeyTypes<CustomProperties, DbTypeInitializer>
+  >
+
+// TODO Migrating from pgtui to our custom types is a pain because of two bugs in pgtui.
+// This type is a workaround to make the migration easier and should be removed later.
+// To remove it, we need to fix a lot of type errors. It can be done per table thanks
+// to a configuration option of generate-types.
+export type ReproducePgtuiBugs<T> = {
+  [K in keyof T]: K extends \`\${string}_id\`
+    ? string
+    : ReplaceJSONValueWithAny<T[K]>
+}
+
+type ReplaceJSONValueWithAny<T> = [JSONValue] extends [T] ? any : T`
+
+  return project.createSourceFile(
+    `${output_dir}/generated/utils.ts`,
+    file_source,
+    {
+      overwrite: true,
+    },
+  )
+}
diff --git a/src/lib/generate-types/generate-types.ts b/src/lib/generate-types/generate-types.ts
new file mode 100644
index 0000000..4e806ae
--- /dev/null
+++ b/src/lib/generate-types/generate-types.ts
@@ -0,0 +1,109 @@
+import prettier from "prettier"
+import { readDatabaseTree } from "./read-database-tree"
+import type { Config, DatabaseTree } from "./types"
+import { createQueryTypesFile } from "./file-generators/generated/[schema_name]/[TableName]QueryTypes"
+import { createResultingTypeFile } from "./file-generators/generated/[schema_name]/[TableName]"
+import { createSchemaGeneratedTypeIndexFile } from "./file-generators/generated/[schema_name]"
+import { createCustomTypesFile } from "./file-generators/custom/[schema_name]/[TableName]CustomTypes"
+import { createKnexIndexFile } from "./file-generators/generated/knex"
+import { createKyselyIndexFile } from "./file-generators/generated/kysely"
+import { createGeneratedIndexFile } from "./file-generators/generated"
+import { createGeneratedUtilsFile } from "./file-generators/generated/utils"
+import { Project, type SourceFile } from "ts-morph"
+
+/**
+ * Generate types based on a Zapatos database schema.
+ */
+export const generateTypes = async (config: Config) => {
+  const project = new Project()
+  const database_tree = readDatabaseTree(config)
+
+  createGeneratedTypesFiles(project, database_tree, config)
+  createCustomTypesFiles(project, database_tree, config)
+
+  await formatProjectFiles(project)
+
+  project.saveSync()
+}
+
+const createGeneratedTypesFiles = (
+  project: Project,
+  database_tree: DatabaseTree,
+  config: Config,
+) => {
+  const {
+    file_header = "// @generated\n// This file was automatically generated. DO NOT EDIT!\n\n",
+  } = config
+
+  const schemas = Object.values(database_tree.schemas)
+  const generated_types_files: SourceFile[] = [
+    createKyselyIndexFile({ project, schemas }, config),
+    createGeneratedIndexFile({ project, schemas }, config),
+    createGeneratedUtilsFile({ project }, config),
+  ]
+
+  if (config.generate_knex_types) {
+    generated_types_files.push(
+      createKnexIndexFile({ project, schemas }, config),
+    )
+  }
+
+  for (const schema of schemas) {
+    for (const table of Object.values(schema.tables)) {
+      generated_types_files.push(
+        createQueryTypesFile({ project, schema, table }, config),
+        createResultingTypeFile({ project, schema, table }, config),
+      )
+    }
+    if (Object.values(schema.tables).length > 0) {
+      generated_types_files.push(
+        createSchemaGeneratedTypeIndexFile({ project, schema }, config),
+      )
+    }
+  }
+
+  for (const source_file of generated_types_files) {
+    source_file.replaceWithText(`${file_header}${source_file.getFullText()}`)
+  }
+
+  return generated_types_files
+}
+
+const createCustomTypesFiles = (
+  project: Project,
+  database_tree: DatabaseTree,
+  config: Config,
+) => {
+  const custom_types_files: SourceFile[] = []
+  for (const schema of Object.values(database_tree.schemas)) {
+    for (const table of Object.values(schema.tables)) {
+      if (!table.is_customizable) {
+        continue
+      }
+      try {
+        custom_types_files.push(
+          createCustomTypesFile({ project, schema, table }, config),
+        )
+      } catch (error: any) {
+        if (error.message.includes("A source file already exists")) {
+          continue
+        }
+        throw error as Error
+      }
+    }
+  }
+  return custom_types_files
+}
+
+const formatProjectFiles = async (project: Project) => {
+  for (const source_file of project.getSourceFiles()) {
+    const formatted_source = await prettier.format(
+      source_file.getFullText().replace(/;$/gm, ""),
+      {
+        semi: false,
+        parser: "typescript",
+      },
+    )
+    source_file.replaceWithText(formatted_source)
+  }
+}
diff --git a/src/lib/generate-types/index.ts b/src/lib/generate-types/index.ts
new file mode 100644
index 0000000..0196b8f
--- /dev/null
+++ b/src/lib/generate-types/index.ts
@@ -0,0 +1 @@
+export * from "./generate-types"
diff --git a/src/lib/generate-types/read-database-tree.ts b/src/lib/generate-types/read-database-tree.ts
new file mode 100644
index 0000000..7330352
--- /dev/null
+++ b/src/lib/generate-types/read-database-tree.ts
@@ -0,0 +1,229 @@
+import type { Column, Config, DatabaseTree, Schema, Table } from "./types"
+import {
+  type InterfaceDeclaration,
+  Project,
+  type PropertySignature,
+  SyntaxKind,
+} from "ts-morph"
+
+export const readDatabaseTree = (config: Config): DatabaseTree => {
+  const { zapatos_dir } = config
+
+  const project = new Project()
+
+  const zapatos_custom_types = readCustomZapatosTypes(config)
+
+  const source_file = project.addSourceFileAtPath(`${zapatos_dir}/schema.d.ts`)
+  const zapatos_module = source_file.getModules()[0]
+
+  if (!zapatos_module) {
+    throw new Error("Could not find the zapatos module in the schema file")
+  }
+
+  const schemas: Record<string, Schema> = {}
+  for (const schema_module of zapatos_module.getModules()) {
+    const schema_name = schema_module.getName()
+    const tables: Record<string, Table> = {}
+
+    for (const table_module of schema_module.getModules()) {
+      const is_table =
+        table_module
+          .getStatementByKind(SyntaxKind.TypeAliasDeclaration)
+          ?.getName() === "Table"
+
+      if (!is_table) {
+        continue
+      }
+      const table_name = table_module.getName()
+      const is_customizable = isTableCustomizable(
+        {
+          schema_name,
+          table_name,
+        },
+        config
+      )
+      const is_affected_by_pgtui_bugs = isTableAffectedByPgtuiBugs(
+        {
+          schema_name,
+          table_name,
+        },
+        config
+      )
+
+      const table = {
+        name: table_name,
+        selectable_columns: {},
+        insertable_columns: {},
+        is_customizable,
+        is_affected_by_pgtui_bugs,
+        uses_zapatos_column_type: false,
+      }
+
+      table.selectable_columns = getColumns(
+        table_module.getInterfaceOrThrow("Selectable"),
+        table,
+        zapatos_custom_types
+      )
+      table.insertable_columns = getColumns(
+        table_module.getInterfaceOrThrow("Insertable"),
+        table,
+        zapatos_custom_types
+      )
+
+      tables[table_name] = table
+    }
+
+    schemas[schema_name] = {
+      name: schema_name,
+      tables,
+    }
+  }
+
+  return {
+    schemas,
+  }
+}
+
+const isTableCustomizable = (
+  args: { schema_name: string; table_name: string },
+  config: Config
+) => {
+  const { schema_name, table_name } = args
+  const { customizable_tables } = config
+
+  const schema_customizable_tables = customizable_tables?.[schema_name]
+  return (
+    schema_customizable_tables === "all" ||
+    (schema_customizable_tables?.includes(table_name) ?? false)
+  )
+}
+
+const isTableAffectedByPgtuiBugs = (
+  args: { schema_name: string; table_name: string },
+  config: Config
+) => {
+  const { schema_name, table_name } = args
+  const { reproduce_pgtui_bugs_for_tables } = config
+
+  const pgtui_affected_tables = reproduce_pgtui_bugs_for_tables?.[schema_name]
+  return pgtui_affected_tables?.includes(table_name) ?? false
+}
+
+const readCustomZapatosTypes = (config: Config) => {
+  const { zapatos_dir } = config
+
+  const project = new Project()
+  const custom_zapatos_types: Record<string, string> = {}
+
+  const source_files = project.addSourceFilesAtPaths(
+    `${zapatos_dir}/custom/**/*.d.ts`
+  )
+
+  for (const source_file of source_files) {
+    const zapatos_module = source_file.getModules()[0]
+
+    if (!zapatos_module) {
+      throw new Error("Could not find the zapatos module in the schema file")
+    }
+
+    for (const type_alias of zapatos_module.getTypeAliases()) {
+      custom_zapatos_types[type_alias.getName()] = type_alias
+        .getTypeNodeOrThrow()
+        .getText()
+    }
+  }
+  return custom_zapatos_types
+}
+
+const getColumns = (
+  table_interface: InterfaceDeclaration,
+  table: Table,
+  zapatos_custom_types: Record<string, string>
+) => {
+  const columns: Record<string, Column> = {}
+
+  for (const column of table_interface.getProperties()) {
+    const column_name = column.getName()
+    const column_type = customizeType(column, zapatos_custom_types)
+
+    if (column_type.includes("db.")) {
+      table.uses_zapatos_column_type = true
+    }
+
+    columns[column_name] = {
+      name: column_name,
+      type: column_type,
+      is_optional: column.hasQuestionToken(),
+      comments: [],
+    }
+  }
+
+  return columns
+}
+
+const customizeType = (
+  column: PropertySignature,
+  zapatos_custom_types: Record<string, string>
+) => {
+  const type_node = column.getTypeNodeOrThrow()
+  const is_union = type_node.getKind() === SyntaxKind.UnionType
+
+  const type_members = is_union
+    ? type_node
+        .asKindOrThrow(SyntaxKind.UnionType)
+        .getTypeNodes()
+        .map((node) => node.getText())
+    : [type_node.getText()]
+
+  let customized_type_members = type_members
+  customized_type_members = removeZapatosSpecificTypes(customized_type_members)
+  customized_type_members = replaceSvixMessageStatusEnum(
+    customized_type_members
+  )
+  customized_type_members = replaceCustomZapatosTypesWithTheirDefinitions(
+    customized_type_members,
+    zapatos_custom_types
+  )
+  customized_type_members = replaceJSONValueWithNonNullableVersion(
+    customized_type_members
+  )
+
+  return customized_type_members.join(" | ")
+}
+
+const removeZapatosSpecificTypes = (type_members: string[]) =>
+  type_members.filter(
+    (member) =>
+      !(
+        member === "db.DefaultType" ||
+        member.startsWith("db.Parameter") ||
+        member.startsWith("db.SQLFragment")
+      )
+  )
+
+const replaceCustomZapatosTypesWithTheirDefinitions = (
+  type_members: string[],
+  zapatos_custom_types: Record<string, string>
+) =>
+  type_members.map((member) =>
+    member.startsWith("c.Pg")
+      ? zapatos_custom_types[member.slice(2)] ?? member
+      : member
+  )
+
+/**
+ * For some reason Zapatos generates a type `db.JSONValue` which is nullable.
+ * This is an issue as it means non-nullable jsonb columns are not correctly
+ * represented in the generated types.
+ */
+const replaceJSONValueWithNonNullableVersion = (type_members: string[]) =>
+  type_members.map((member) =>
+    member === "db.JSONValue" ? "NonNullable<db.JSONValue>" : member
+  )
+
+const replaceSvixMessageStatusEnum = (type_members: string[]) =>
+  type_members.map((member) =>
+    member === "svix_message_status_enum"
+      ? `"no_svix_app" | "sent" | "unsent"`
+      : member
+  )
diff --git a/src/lib/generate-types/types.ts b/src/lib/generate-types/types.ts
new file mode 100644
index 0000000..686edad
--- /dev/null
+++ b/src/lib/generate-types/types.ts
@@ -0,0 +1,34 @@
+export type Config = {
+  zapatos_dir: string
+  output_dir: string
+  customizable_tables?: Record<string, string[] | "all">
+  reproduce_pgtui_bugs_for_tables?: Record<string, string[]>
+  generate_knex_types?: boolean
+  main_schema?: string
+  file_header?: string
+}
+
+export type DatabaseTree = {
+  schemas: Record<string, Schema>
+}
+
+export type Schema = {
+  name: string
+  tables: Record<string, Table>
+}
+
+export type Table = {
+  name: string
+  selectable_columns: Record<string, Column>
+  insertable_columns: Record<string, Column>
+  is_customizable: boolean
+  is_affected_by_pgtui_bugs: boolean
+  uses_zapatos_column_type: boolean
+}
+
+export type Column = {
+  name: string
+  type: string
+  is_optional: boolean
+  comments: string[]
+}
diff --git a/src/lib/generate-types/utils.ts b/src/lib/generate-types/utils.ts
new file mode 100644
index 0000000..67932a9
--- /dev/null
+++ b/src/lib/generate-types/utils.ts
@@ -0,0 +1,5 @@
+export const pascalCase = (str: string): string => {
+  return str.replace(/(_\w|^\w)/g, (match) =>
+    match.replace("_", "").toUpperCase()
+  )
+}
diff --git a/src/lib/index.ts b/src/lib/index.ts
index d546f51..f1142df 100644
--- a/src/lib/index.ts
+++ b/src/lib/index.ts
@@ -1,2 +1,3 @@
+export * from "./generate-types"
 export * from "./generate-schema"
 export * from "./generate-structure"