diff --git a/src/Attribute.roc b/src/Attribute.roc
index 199c188..05cbe90 100644
--- a/src/Attribute.roc
+++ b/src/Attribute.roc
@@ -1,140 +1,138 @@
-interface Attribute
-    exposes [
-        Attribute,
-        attribute,
-        accept,
-        acceptCharset,
-        accesskey,
-        action,
-        align,
-        allow,
-        alt,
-        async,
-        autocapitalize,
-        autocomplete,
-        autofocus,
-        autoplay,
-        background,
-        bgcolor,
-        border,
-        buffered,
-        capture,
-        challenge,
-        charset,
-        checked,
-        cite,
-        class,
-        code,
-        codebase,
-        color,
-        cols,
-        colspan,
-        content,
-        contenteditable,
-        contextmenu,
-        controls,
-        coords,
-        crossorigin,
-        csp,
-        data,
-        datetime,
-        decoding,
-        default,
-        defer,
-        dir,
-        dirname,
-        disabled,
-        download,
-        draggable,
-        enctype,
-        enterkeyhint,
-        for,
-        form,
-        formaction,
-        formenctype,
-        formmethod,
-        formnovalidate,
-        formtarget,
-        headers,
-        height,
-        hidden,
-        high,
-        href,
-        hreflang,
-        httpEquiv,
-        icon,
-        id,
-        importance,
-        inputmode,
-        integrity,
-        intrinsicsize,
-        ismap,
-        itemprop,
-        keytype,
-        kind,
-        label,
-        lang,
-        language,
-        list,
-        loading,
-        loop,
-        low,
-        manifest,
-        max,
-        maxlength,
-        media,
-        method,
-        min,
-        minlength,
-        multiple,
-        muted,
-        name,
-        novalidate,
-        open,
-        optimum,
-        pattern,
-        ping,
-        placeholder,
-        poster,
-        preload,
-        radiogroup,
-        readonly,
-        referrerpolicy,
-        rel,
-        required,
-        reversed,
-        role,
-        rows,
-        rowspan,
-        sandbox,
-        scope,
-        scoped,
-        selected,
-        shape,
-        size,
-        sizes,
-        slot,
-        span,
-        spellcheck,
-        src,
-        srcdoc,
-        srclang,
-        srcset,
-        start,
-        step,
-        style,
-        summary,
-        tabindex,
-        target,
-        title,
-        translate,
-        type,
-        usemap,
-        value,
-        width,
-        wrap,
-    ]
-    imports []
+module [
+    Attribute,
+    attribute,
+    accept,
+    acceptCharset,
+    accesskey,
+    action,
+    align,
+    allow,
+    alt,
+    async,
+    autocapitalize,
+    autocomplete,
+    autofocus,
+    autoplay,
+    background,
+    bgcolor,
+    border,
+    buffered,
+    capture,
+    challenge,
+    charset,
+    checked,
+    cite,
+    class,
+    code,
+    codebase,
+    color,
+    cols,
+    colspan,
+    content,
+    contenteditable,
+    contextmenu,
+    controls,
+    coords,
+    crossorigin,
+    csp,
+    data,
+    datetime,
+    decoding,
+    default,
+    defer,
+    dir,
+    dirname,
+    disabled,
+    download,
+    draggable,
+    enctype,
+    enterkeyhint,
+    for,
+    form,
+    formaction,
+    formenctype,
+    formmethod,
+    formnovalidate,
+    formtarget,
+    headers,
+    height,
+    hidden,
+    high,
+    href,
+    hreflang,
+    httpEquiv,
+    icon,
+    id,
+    importance,
+    inputmode,
+    integrity,
+    intrinsicsize,
+    ismap,
+    itemprop,
+    keytype,
+    kind,
+    label,
+    lang,
+    language,
+    list,
+    loading,
+    loop,
+    low,
+    manifest,
+    max,
+    maxlength,
+    media,
+    method,
+    min,
+    minlength,
+    multiple,
+    muted,
+    name,
+    novalidate,
+    open,
+    optimum,
+    pattern,
+    ping,
+    placeholder,
+    poster,
+    preload,
+    radiogroup,
+    readonly,
+    referrerpolicy,
+    rel,
+    required,
+    reversed,
+    role,
+    rows,
+    rowspan,
+    sandbox,
+    scope,
+    scoped,
+    selected,
+    shape,
+    size,
+    sizes,
+    slot,
+    span,
+    spellcheck,
+    src,
+    srcdoc,
+    srclang,
+    srcset,
+    start,
+    step,
+    style,
+    summary,
+    tabindex,
+    target,
+    title,
+    translate,
+    type,
+    usemap,
+    value,
+    width,
+    wrap,
+]
 
 Attribute : [Attribute Str Str]
 
diff --git a/src/Html.roc b/src/Html.roc
index a2810fc..af7c60b 100644
--- a/src/Html.roc
+++ b/src/Html.roc
@@ -1,142 +1,143 @@
-interface Html
-    exposes [
-        Node,
-        text,
-        element,
-        voidElement,
-        render,
-        renderWithoutDocType,
-        dangerouslyIncludeUnescapedHtml,
-        # Content sectioning
-        address,
-        article,
-        aside,
-        footer,
-        h1,
-        h2,
-        h3,
-        h4,
-        h5,
-        h6,
-        header,
-        main,
-        nav,
-        section,
-        # Demarcating edits
-        del,
-        ins,
-        # Document metadata
-        base,
-        head,
-        link,
-        meta,
-        style,
-        title,
-        # Embedded content
-        embed,
-        iframe,
-        object,
-        picture,
-        portal,
-        source,
-        # Forms
-        button,
-        datalist,
-        fieldset,
-        form,
-        input,
-        label,
-        legend,
-        meter,
-        optgroup,
-        option,
-        output,
-        progress,
-        select,
-        textarea,
-        # Image and multimedia
-        area,
-        audio,
-        img,
-        map,
-        track,
-        video,
-        # Inline text semantics
-        a,
-        abbr,
-        b,
-        bdi,
-        bdo,
-        br,
-        cite,
-        code,
-        data,
-        dfn,
-        em,
-        i,
-        kbd,
-        mark,
-        q,
-        rp,
-        rt,
-        ruby,
-        s,
-        samp,
-        small,
-        span,
-        strong,
-        sub,
-        sup,
-        time,
-        u,
-        var,
-        wbr,
-        # Interactive elements
-        details,
-        dialog,
-        summary,
-        # Main root
-        html,
-        # SVG and MathML
-        math,
-        svg,
-        # Scripting
-        canvas,
-        noscript,
-        script,
-        # Sectioning root
-        body,
-        # Table content
-        caption,
-        col,
-        colgroup,
-        table,
-        tbody,
-        td,
-        tfoot,
-        th,
-        thead,
-        tr,
-        # Text content
-        blockquote,
-        dd,
-        div,
-        dl,
-        dt,
-        figcaption,
-        figure,
-        hr,
-        li,
-        menu,
-        ol,
-        p,
-        pre,
-        ul,
-        # Web components
-        slot,
-        template,
-    ]
-    imports [Attribute.{ Attribute, attribute }, SafeStr.{ SafeStr, escape, dangerouslyMarkSafe }]
+module [
+    Node,
+    text,
+    element,
+    voidElement,
+    render,
+    renderWithoutDocType,
+    dangerouslyIncludeUnescapedHtml,
+    # Content sectioning
+    address,
+    article,
+    aside,
+    footer,
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6,
+    header,
+    main,
+    nav,
+    section,
+    # Demarcating edits
+    del,
+    ins,
+    # Document metadata
+    base,
+    head,
+    link,
+    meta,
+    style,
+    title,
+    # Embedded content
+    embed,
+    iframe,
+    object,
+    picture,
+    portal,
+    source,
+    # Forms
+    button,
+    datalist,
+    fieldset,
+    form,
+    input,
+    label,
+    legend,
+    meter,
+    optgroup,
+    option,
+    output,
+    progress,
+    select,
+    textarea,
+    # Image and multimedia
+    area,
+    audio,
+    img,
+    map,
+    track,
+    video,
+    # Inline text semantics
+    a,
+    abbr,
+    b,
+    bdi,
+    bdo,
+    br,
+    cite,
+    code,
+    data,
+    dfn,
+    em,
+    i,
+    kbd,
+    mark,
+    q,
+    rp,
+    rt,
+    ruby,
+    s,
+    samp,
+    small,
+    span,
+    strong,
+    sub,
+    sup,
+    time,
+    u,
+    var,
+    wbr,
+    # Interactive elements
+    details,
+    dialog,
+    summary,
+    # Main root
+    html,
+    # SVG and MathML
+    math,
+    svg,
+    # Scripting
+    canvas,
+    noscript,
+    script,
+    # Sectioning root
+    body,
+    # Table content
+    caption,
+    col,
+    colgroup,
+    table,
+    tbody,
+    td,
+    tfoot,
+    th,
+    thead,
+    tr,
+    # Text content
+    blockquote,
+    dd,
+    div,
+    dl,
+    dt,
+    figcaption,
+    figure,
+    hr,
+    li,
+    menu,
+    ol,
+    p,
+    pre,
+    ul,
+    # Web components
+    slot,
+    template,
+]
+
+import Attribute exposing [Attribute, attribute]
+import SafeStr exposing [SafeStr, escape, dangerouslyMarkSafe]
 
 ## An HTML node, either an HTML element or some text inside an HTML element.
 Node : [Element Str U64 (List Attribute) (List Node), Text Str, UnescapedHtml Str]
diff --git a/src/SafeStr.roc b/src/SafeStr.roc
index 9d2b149..069fc1e 100644
--- a/src/SafeStr.roc
+++ b/src/SafeStr.roc
@@ -1,13 +1,12 @@
-interface SafeStr
-    exposes [
-        toStr,
-        escape,
-        dangerouslyMarkSafe,
-        withCapacity,
-        concat,
-        reserve,
-    ]
-    imports []
+module [
+    SafeStr,
+    toStr,
+    escape,
+    dangerouslyMarkSafe,
+    withCapacity,
+    concat,
+    reserve,
+]
 
 ## An opaque type used to keep track of the fact that we know a string is HTML-safe.
 SafeStr := Str
diff --git a/src/main.roc b/src/main.roc
index bec7e17..f44e093 100644
--- a/src/main.roc
+++ b/src/main.roc
@@ -1 +1 @@
-package "Html" exposes [Html, Attribute] packages {}
+package [Html, Attribute] {}